Home / 15,412.92-21,269.90-8,698.83

Finding the Fourth Proportional to 15,412.92, 21,269.90 and 8,698.83

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Solution

The fourth proportional to 15,412.92, 21,269.90 and 8,698.83 is: 12,004.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.92 : 21,269.90 = 8,698.83 : x
  2. Step 2: Convert to fraction form
    15,412.92/21,269.90 = 8,698.83/x
  3. Step 3: Cross multiply
    15,412.92x = 21,269.90 × 8,698.83
  4. Step 4: Simplify right side
    15,412.92x = 185,023,265.96
  5. Step 5: Solve for x
    x = 185,023,265.96/15,412.92
  6. Step 6: Final answer
    x = 12,004.43

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.