Home / 19,680.28-29,516.10-7,996.12

Finding the Fourth Proportional to 19,680.28, 29,516.10 and 7,996.12

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Solution

The fourth proportional to 19,680.28, 29,516.10 and 7,996.12 is: 11,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.28 : 29,516.10 = 7,996.12 : x
  2. Step 2: Convert to fraction form
    19,680.28/29,516.10 = 7,996.12/x
  3. Step 3: Cross multiply
    19,680.28x = 29,516.10 × 7,996.12
  4. Step 4: Simplify right side
    19,680.28x = 236,014,277.53
  5. Step 5: Solve for x
    x = 236,014,277.53/19,680.28
  6. Step 6: Final answer
    x = 11,992.42

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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.