Home / 11,754.18-16,220.76-6,448.88

Finding the Fourth Proportional to 11,754.18, 16,220.76 and 6,448.88

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Solution

The fourth proportional to 11,754.18, 16,220.76 and 6,448.88 is: 8,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,754.18 : 16,220.76 = 6,448.88 : x
  2. Step 2: Convert to fraction form
    11,754.18/16,220.76 = 6,448.88/x
  3. Step 3: Cross multiply
    11,754.18x = 16,220.76 × 6,448.88
  4. Step 4: Simplify right side
    11,754.18x = 104,605,723.50
  5. Step 5: Solve for x
    x = 104,605,723.50/11,754.18
  6. Step 6: Final answer
    x = 8,899.45

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Double scale
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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.