Home / 10,712.96-16,067.28-5,781.68

Finding the Fourth Proportional to 10,712.96, 16,067.28 and 5,781.68

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Solution

The fourth proportional to 10,712.96, 16,067.28 and 5,781.68 is: 8,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.96 : 16,067.28 = 5,781.68 : x
  2. Step 2: Convert to fraction form
    10,712.96/16,067.28 = 5,781.68/x
  3. Step 3: Cross multiply
    10,712.96x = 16,067.28 × 5,781.68
  4. Step 4: Simplify right side
    10,712.96x = 92,895,871.43
  5. Step 5: Solve for x
    x = 92,895,871.43/10,712.96
  6. Step 6: Final answer
    x = 8,671.35

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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.