Home / 11,031.36-15,225.44-6,318.76

Finding the Fourth Proportional to 11,031.36, 15,225.44 and 6,318.76

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Solution

The fourth proportional to 11,031.36, 15,225.44 and 6,318.76 is: 8,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.36 : 15,225.44 = 6,318.76 : x
  2. Step 2: Convert to fraction form
    11,031.36/15,225.44 = 6,318.76/x
  3. Step 3: Cross multiply
    11,031.36x = 15,225.44 × 6,318.76
  4. Step 4: Simplify right side
    11,031.36x = 96,205,901.25
  5. Step 5: Solve for x
    x = 96,205,901.25/11,031.36
  6. Step 6: Final answer
    x = 8,721.13

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Half scale
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Double scale
Find fourth proportional to 11,032.36, 15,226.82 and 6,319.76
Similar ratio
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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.