Home / 10,008.78-15,013.18-2,613.24

Finding the Fourth Proportional to 10,008.78, 15,013.18 and 2,613.24

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Solution

The fourth proportional to 10,008.78, 15,013.18 and 2,613.24 is: 3,919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.78 : 15,013.18 = 2,613.24 : x
  2. Step 2: Convert to fraction form
    10,008.78/15,013.18 = 2,613.24/x
  3. Step 3: Cross multiply
    10,008.78x = 15,013.18 × 2,613.24
  4. Step 4: Simplify right side
    10,008.78x = 39,233,042.50
  5. Step 5: Solve for x
    x = 39,233,042.50/10,008.78
  6. Step 6: Final answer
    x = 3,919.86

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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.