Home / 8,631.07-12,948.68-5,124.13

Finding the Fourth Proportional to 8,631.07, 12,948.68 and 5,124.13

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Solution

The fourth proportional to 8,631.07, 12,948.68 and 5,124.13 is: 7,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.07 : 12,948.68 = 5,124.13 : x
  2. Step 2: Convert to fraction form
    8,631.07/12,948.68 = 5,124.13/x
  3. Step 3: Cross multiply
    8,631.07x = 12,948.68 × 5,124.13
  4. Step 4: Simplify right side
    8,631.07x = 66,350,719.65
  5. Step 5: Solve for x
    x = 66,350,719.65/8,631.07
  6. Step 6: Final answer
    x = 7,687.43

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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.