Home / 12,306.66-17,001.72-8,067.80

Finding the Fourth Proportional to 12,306.66, 17,001.72 and 8,067.80

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Solution

The fourth proportional to 12,306.66, 17,001.72 and 8,067.80 is: 11,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.66 : 17,001.72 = 8,067.80 : x
  2. Step 2: Convert to fraction form
    12,306.66/17,001.72 = 8,067.80/x
  3. Step 3: Cross multiply
    12,306.66x = 17,001.72 × 8,067.80
  4. Step 4: Simplify right side
    12,306.66x = 137,166,391.61
  5. Step 5: Solve for x
    x = 137,166,391.61/12,306.66
  6. Step 6: Final answer
    x = 11,145.70

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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.