Home / 14,001.38-19,321.20-8,696.08

Finding the Fourth Proportional to 14,001.38, 19,321.20 and 8,696.08

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Solution

The fourth proportional to 14,001.38, 19,321.20 and 8,696.08 is: 12,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.38 : 19,321.20 = 8,696.08 : x
  2. Step 2: Convert to fraction form
    14,001.38/19,321.20 = 8,696.08/x
  3. Step 3: Cross multiply
    14,001.38x = 19,321.20 × 8,696.08
  4. Step 4: Simplify right side
    14,001.38x = 168,018,700.90
  5. Step 5: Solve for x
    x = 168,018,700.90/14,001.38
  6. Step 6: Final answer
    x = 12,000.15

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