Home / 10,186.10-15,279.15-4,343.30

Finding the Fourth Proportional to 10,186.10, 15,279.15 and 4,343.30

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Solution

The fourth proportional to 10,186.10, 15,279.15 and 4,343.30 is: 6,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.10 : 15,279.15 = 4,343.30 : x
  2. Step 2: Convert to fraction form
    10,186.10/15,279.15 = 4,343.30/x
  3. Step 3: Cross multiply
    10,186.10x = 15,279.15 × 4,343.30
  4. Step 4: Simplify right side
    10,186.10x = 66,361,932.20
  5. Step 5: Solve for x
    x = 66,361,932.20/10,186.10
  6. Step 6: Final answer
    x = 6,514.95

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Double scale
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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.