Home / 16,872.90-25,309.35-8,999.70

Finding the Fourth Proportional to 16,872.90, 25,309.35 and 8,999.70

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Solution

The fourth proportional to 16,872.90, 25,309.35 and 8,999.70 is: 13,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.90 : 25,309.35 = 8,999.70 : x
  2. Step 2: Convert to fraction form
    16,872.90/25,309.35 = 8,999.70/x
  3. Step 3: Cross multiply
    16,872.90x = 25,309.35 × 8,999.70
  4. Step 4: Simplify right side
    16,872.90x = 227,776,557.20
  5. Step 5: Solve for x
    x = 227,776,557.20/16,872.90
  6. Step 6: Final answer
    x = 13,499.55

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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.