Home / 11,862.80-16,372.35-7,387.95

Finding the Fourth Proportional to 11,862.80, 16,372.35 and 7,387.95

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Solution

The fourth proportional to 11,862.80, 16,372.35 and 7,387.95 is: 10,196.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.80 : 16,372.35 = 7,387.95 : x
  2. Step 2: Convert to fraction form
    11,862.80/16,372.35 = 7,387.95/x
  3. Step 3: Cross multiply
    11,862.80x = 16,372.35 × 7,387.95
  4. Step 4: Simplify right side
    11,862.80x = 120,958,103.18
  5. Step 5: Solve for x
    x = 120,958,103.18/11,862.80
  6. Step 6: Final answer
    x = 10,196.43

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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.