Home / 15,541.20-23,311.80-5,687.55

Finding the Fourth Proportional to 15,541.20, 23,311.80 and 5,687.55

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Solution

The fourth proportional to 15,541.20, 23,311.80 and 5,687.55 is: 8,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.20 : 23,311.80 = 5,687.55 : x
  2. Step 2: Convert to fraction form
    15,541.20/23,311.80 = 5,687.55/x
  3. Step 3: Cross multiply
    15,541.20x = 23,311.80 × 5,687.55
  4. Step 4: Simplify right side
    15,541.20x = 132,587,028.09
  5. Step 5: Solve for x
    x = 132,587,028.09/15,541.20
  6. Step 6: Final answer
    x = 8,531.33

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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.