Home / 12,167.11-18,248.84-3,400.89

Finding the Fourth Proportional to 12,167.11, 18,248.84 and 3,400.89

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Solution

The fourth proportional to 12,167.11, 18,248.84 and 3,400.89 is: 5,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.11 : 18,248.84 = 3,400.89 : x
  2. Step 2: Convert to fraction form
    12,167.11/18,248.84 = 3,400.89/x
  3. Step 3: Cross multiply
    12,167.11x = 18,248.84 × 3,400.89
  4. Step 4: Simplify right side
    12,167.11x = 62,062,243.91
  5. Step 5: Solve for x
    x = 62,062,243.91/12,167.11
  6. Step 6: Final answer
    x = 5,100.82

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1.5x scale

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.