Home / 10,613.59-15,920.12-5,070.85

Finding the Fourth Proportional to 10,613.59, 15,920.12 and 5,070.85

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Solution

The fourth proportional to 10,613.59, 15,920.12 and 5,070.85 is: 7,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.59 : 15,920.12 = 5,070.85 : x
  2. Step 2: Convert to fraction form
    10,613.59/15,920.12 = 5,070.85/x
  3. Step 3: Cross multiply
    10,613.59x = 15,920.12 × 5,070.85
  4. Step 4: Simplify right side
    10,613.59x = 80,728,515.15
  5. Step 5: Solve for x
    x = 80,728,515.15/10,613.59
  6. Step 6: Final answer
    x = 7,606.15

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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.