Home / 15,071.20-22,581.32-9,215.52

Finding the Fourth Proportional to 15,071.20, 22,581.32 and 9,215.52

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Solution

The fourth proportional to 15,071.20, 22,581.32 and 9,215.52 is: 13,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071.20 : 22,581.32 = 9,215.52 : x
  2. Step 2: Convert to fraction form
    15,071.20/22,581.32 = 9,215.52/x
  3. Step 3: Cross multiply
    15,071.20x = 22,581.32 × 9,215.52
  4. Step 4: Simplify right side
    15,071.20x = 208,098,606.09
  5. Step 5: Solve for x
    x = 208,098,606.09/15,071.20
  6. Step 6: Final answer
    x = 13,807.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.