Home / 16,871.30-25,292.55-11,925.38

Finding the Fourth Proportional to 16,871.30, 25,292.55 and 11,925.38

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Solution

The fourth proportional to 16,871.30, 25,292.55 and 11,925.38 is: 17,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.30 : 25,292.55 = 11,925.38 : x
  2. Step 2: Convert to fraction form
    16,871.30/25,292.55 = 11,925.38/x
  3. Step 3: Cross multiply
    16,871.30x = 25,292.55 × 11,925.38
  4. Step 4: Simplify right side
    16,871.30x = 301,623,269.92
  5. Step 5: Solve for x
    x = 301,623,269.92/16,871.30
  6. Step 6: Final answer
    x = 17,877.89

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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.