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Finding the Fourth Proportional to 7,253.20, 10,863.06 and 7,132.78

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Solution

The fourth proportional to 7,253.20, 10,863.06 and 7,132.78 is: 10,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,253.20 : 10,863.06 = 7,132.78 : x
  2. Step 2: Convert to fraction form
    7,253.20/10,863.06 = 7,132.78/x
  3. Step 3: Cross multiply
    7,253.20x = 10,863.06 × 7,132.78
  4. Step 4: Simplify right side
    7,253.20x = 77,483,817.11
  5. Step 5: Solve for x
    x = 77,483,817.11/7,253.20
  6. Step 6: Final answer
    x = 10,682.71

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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.