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Finding the Fourth Proportional to 14,989.92, 22,489.68 and 7,199.28

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Solution

The fourth proportional to 14,989.92, 22,489.68 and 7,199.28 is: 10,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.92 : 22,489.68 = 7,199.28 : x
  2. Step 2: Convert to fraction form
    14,989.92/22,489.68 = 7,199.28/x
  3. Step 3: Cross multiply
    14,989.92x = 22,489.68 × 7,199.28
  4. Step 4: Simplify right side
    14,989.92x = 161,909,503.43
  5. Step 5: Solve for x
    x = 161,909,503.43/14,989.92
  6. Step 6: Final answer
    x = 10,801.23

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1.5x scale

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.