Home / 10,390.77-15,586.16-5,195.43

Finding the Fourth Proportional to 10,390.77, 15,586.16 and 5,195.43

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Solution

The fourth proportional to 10,390.77, 15,586.16 and 5,195.43 is: 7,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.77 : 15,586.16 = 5,195.43 : x
  2. Step 2: Convert to fraction form
    10,390.77/15,586.16 = 5,195.43/x
  3. Step 3: Cross multiply
    10,390.77x = 15,586.16 × 5,195.43
  4. Step 4: Simplify right side
    10,390.77x = 80,976,777.27
  5. Step 5: Solve for x
    x = 80,976,777.27/10,390.77
  6. Step 6: Final answer
    x = 7,793.15

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Half scale
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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.