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Finding the Fourth Proportional to 14,815.28, 22,211.92 and 8,970.56

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Solution

The fourth proportional to 14,815.28, 22,211.92 and 8,970.56 is: 13,449.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.28 : 22,211.92 = 8,970.56 : x
  2. Step 2: Convert to fraction form
    14,815.28/22,211.92 = 8,970.56/x
  3. Step 3: Cross multiply
    14,815.28x = 22,211.92 × 8,970.56
  4. Step 4: Simplify right side
    14,815.28x = 199,253,361.08
  5. Step 5: Solve for x
    x = 199,253,361.08/14,815.28
  6. Step 6: Final answer
    x = 13,449.18

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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.