Home / 12,125.18-16,732.19-6,747.89

Finding the Fourth Proportional to 12,125.18, 16,732.19 and 6,747.89

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Solution

The fourth proportional to 12,125.18, 16,732.19 and 6,747.89 is: 9,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.18 : 16,732.19 = 6,747.89 : x
  2. Step 2: Convert to fraction form
    12,125.18/16,732.19 = 6,747.89/x
  3. Step 3: Cross multiply
    12,125.18x = 16,732.19 × 6,747.89
  4. Step 4: Simplify right side
    12,125.18x = 112,906,860.18
  5. Step 5: Solve for x
    x = 112,906,860.18/12,125.18
  6. Step 6: Final answer
    x = 9,311.77

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1.5x scale

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.