Home / 18,375.55-25,357.50-10,417.61

Finding the Fourth Proportional to 18,375.55, 25,357.50 and 10,417.61

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Solution

The fourth proportional to 18,375.55, 25,357.50 and 10,417.61 is: 14,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.55 : 25,357.50 = 10,417.61 : x
  2. Step 2: Convert to fraction form
    18,375.55/25,357.50 = 10,417.61/x
  3. Step 3: Cross multiply
    18,375.55x = 25,357.50 × 10,417.61
  4. Step 4: Simplify right side
    18,375.55x = 264,164,608.97
  5. Step 5: Solve for x
    x = 264,164,608.97/18,375.55
  6. Step 6: Final answer
    x = 14,375.88

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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.