Home / 18,180.40-25,081.50-11,463.88

Finding the Fourth Proportional to 18,180.40, 25,081.50 and 11,463.88

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Solution

The fourth proportional to 18,180.40, 25,081.50 and 11,463.88 is: 15,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.40 : 25,081.50 = 11,463.88 : x
  2. Step 2: Convert to fraction form
    18,180.40/25,081.50 = 11,463.88/x
  3. Step 3: Cross multiply
    18,180.40x = 25,081.50 × 11,463.88
  4. Step 4: Simplify right side
    18,180.40x = 287,531,306.22
  5. Step 5: Solve for x
    x = 287,531,306.22/18,180.40
  6. Step 6: Final answer
    x = 15,815.46

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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.