Home / 12,663.12-18,982.16-10,902

Finding the Fourth Proportional to 12,663.12, 18,982.16 and 10,902

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Solution

The fourth proportional to 12,663.12, 18,982.16 and 10,902 is: 16,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.12 : 18,982.16 = 10,902 : x
  2. Step 2: Convert to fraction form
    12,663.12/18,982.16 = 10,902/x
  3. Step 3: Cross multiply
    12,663.12x = 18,982.16 × 10,902
  4. Step 4: Simplify right side
    12,663.12x = 206,943,508.32
  5. Step 5: Solve for x
    x = 206,943,508.32/12,663.12
  6. Step 6: Final answer
    x = 16,342.22

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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.