Home / 7,487.70-11,231.55-5,154.90

Finding the Fourth Proportional to 7,487.70, 11,231.55 and 5,154.90

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Solution

The fourth proportional to 7,487.70, 11,231.55 and 5,154.90 is: 7,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.70 : 11,231.55 = 5,154.90 : x
  2. Step 2: Convert to fraction form
    7,487.70/11,231.55 = 5,154.90/x
  3. Step 3: Cross multiply
    7,487.70x = 11,231.55 × 5,154.90
  4. Step 4: Simplify right side
    7,487.70x = 57,897,517.10
  5. Step 5: Solve for x
    x = 57,897,517.10/7,487.70
  6. Step 6: Final answer
    x = 7,732.35

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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.