Home / 18,125.20-27,191.80-7,451.53

Finding the Fourth Proportional to 18,125.20, 27,191.80 and 7,451.53

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Solution

The fourth proportional to 18,125.20, 27,191.80 and 7,451.53 is: 11,178.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.20 : 27,191.80 = 7,451.53 : x
  2. Step 2: Convert to fraction form
    18,125.20/27,191.80 = 7,451.53/x
  3. Step 3: Cross multiply
    18,125.20x = 27,191.80 × 7,451.53
  4. Step 4: Simplify right side
    18,125.20x = 202,620,454.79
  5. Step 5: Solve for x
    x = 202,620,454.79/18,125.20
  6. Step 6: Final answer
    x = 11,178.94

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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.