Home / 12,452.85-18,679.68-5,057.15

Finding the Fourth Proportional to 12,452.85, 18,679.68 and 5,057.15

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Solution

The fourth proportional to 12,452.85, 18,679.68 and 5,057.15 is: 7,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.85 : 18,679.68 = 5,057.15 : x
  2. Step 2: Convert to fraction form
    12,452.85/18,679.68 = 5,057.15/x
  3. Step 3: Cross multiply
    12,452.85x = 18,679.68 × 5,057.15
  4. Step 4: Simplify right side
    12,452.85x = 94,465,850.31
  5. Step 5: Solve for x
    x = 94,465,850.31/12,452.85
  6. Step 6: Final answer
    x = 7,585.88

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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.