Home / 7,132.32-10,687.68-5,280.48

Finding the Fourth Proportional to 7,132.32, 10,687.68 and 5,280.48

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Solution

The fourth proportional to 7,132.32, 10,687.68 and 5,280.48 is: 7,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.32 : 10,687.68 = 5,280.48 : x
  2. Step 2: Convert to fraction form
    7,132.32/10,687.68 = 5,280.48/x
  3. Step 3: Cross multiply
    7,132.32x = 10,687.68 × 5,280.48
  4. Step 4: Simplify right side
    7,132.32x = 56,436,080.49
  5. Step 5: Solve for x
    x = 56,436,080.49/7,132.32
  6. Step 6: Final answer
    x = 7,912.72

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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.