Home / 18,231.98-27,337.16-7,125.80

Finding the Fourth Proportional to 18,231.98, 27,337.16 and 7,125.80

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Solution

The fourth proportional to 18,231.98, 27,337.16 and 7,125.80 is: 10,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.98 : 27,337.16 = 7,125.80 : x
  2. Step 2: Convert to fraction form
    18,231.98/27,337.16 = 7,125.80/x
  3. Step 3: Cross multiply
    18,231.98x = 27,337.16 × 7,125.80
  4. Step 4: Simplify right side
    18,231.98x = 194,799,134.73
  5. Step 5: Solve for x
    x = 194,799,134.73/18,231.98
  6. Step 6: Final answer
    x = 10,684.48

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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.