Home / 8,724.97-13,087.46-6,139.45

Finding the Fourth Proportional to 8,724.97, 13,087.46 and 6,139.45

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Solution

The fourth proportional to 8,724.97, 13,087.46 and 6,139.45 is: 9,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,724.97 : 13,087.46 = 6,139.45 : x
  2. Step 2: Convert to fraction form
    8,724.97/13,087.46 = 6,139.45/x
  3. Step 3: Cross multiply
    8,724.97x = 13,087.46 × 6,139.45
  4. Step 4: Simplify right side
    8,724.97x = 80,349,806.30
  5. Step 5: Solve for x
    x = 80,349,806.30/8,724.97
  6. Step 6: Final answer
    x = 9,209.18

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Similar ratio
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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.