Home / 11,238.64-15,508.76-6,269.68

Finding the Fourth Proportional to 11,238.64, 15,508.76 and 6,269.68

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Solution

The fourth proportional to 11,238.64, 15,508.76 and 6,269.68 is: 8,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.64 : 15,508.76 = 6,269.68 : x
  2. Step 2: Convert to fraction form
    11,238.64/15,508.76 = 6,269.68/x
  3. Step 3: Cross multiply
    11,238.64x = 15,508.76 × 6,269.68
  4. Step 4: Simplify right side
    11,238.64x = 97,234,962.40
  5. Step 5: Solve for x
    x = 97,234,962.40/11,238.64
  6. Step 6: Final answer
    x = 8,651.84

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Find fourth proportional to 5,619.32, 7,754.38 and 3,134.84
Half scale
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Double scale
Find fourth proportional to 11,239.64, 15,510.14 and 6,270.68
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.