Home / 11,217.92-15,487.34-9,972.27

Finding the Fourth Proportional to 11,217.92, 15,487.34 and 9,972.27

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Solution

The fourth proportional to 11,217.92, 15,487.34 and 9,972.27 is: 13,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.92 : 15,487.34 = 9,972.27 : x
  2. Step 2: Convert to fraction form
    11,217.92/15,487.34 = 9,972.27/x
  3. Step 3: Cross multiply
    11,217.92x = 15,487.34 × 9,972.27
  4. Step 4: Simplify right side
    11,217.92x = 154,443,886.20
  5. Step 5: Solve for x
    x = 154,443,886.20/11,217.92
  6. Step 6: Final answer
    x = 13,767.61

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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.