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Finding the Fourth Proportional to 9,998.96, 15,001.92 and 4,456.16

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Solution

The fourth proportional to 9,998.96, 15,001.92 and 4,456.16 is: 6,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.96 : 15,001.92 = 4,456.16 : x
  2. Step 2: Convert to fraction form
    9,998.96/15,001.92 = 4,456.16/x
  3. Step 3: Cross multiply
    9,998.96x = 15,001.92 × 4,456.16
  4. Step 4: Simplify right side
    9,998.96x = 66,850,955.83
  5. Step 5: Solve for x
    x = 66,850,955.83/9,998.96
  6. Step 6: Final answer
    x = 6,685.79

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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.