Home / 8,685.28-13,003.08-5,757.76

Finding the Fourth Proportional to 8,685.28, 13,003.08 and 5,757.76

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Solution

The fourth proportional to 8,685.28, 13,003.08 and 5,757.76 is: 8,620.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.28 : 13,003.08 = 5,757.76 : x
  2. Step 2: Convert to fraction form
    8,685.28/13,003.08 = 5,757.76/x
  3. Step 3: Cross multiply
    8,685.28x = 13,003.08 × 5,757.76
  4. Step 4: Simplify right side
    8,685.28x = 74,868,613.90
  5. Step 5: Solve for x
    x = 74,868,613.90/8,685.28
  6. Step 6: Final answer
    x = 8,620.17

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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.