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Finding the Fourth Proportional to 15,037.53, 20,753.73 and 9,072.42

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Solution

The fourth proportional to 15,037.53, 20,753.73 and 9,072.42 is: 12,521.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037.53 : 20,753.73 = 9,072.42 : x
  2. Step 2: Convert to fraction form
    15,037.53/20,753.73 = 9,072.42/x
  3. Step 3: Cross multiply
    15,037.53x = 20,753.73 × 9,072.42
  4. Step 4: Simplify right side
    15,037.53x = 188,286,555.13
  5. Step 5: Solve for x
    x = 188,286,555.13/15,037.53
  6. Step 6: Final answer
    x = 12,521.11

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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.