Home / 18,375.62-25,362.86-10,422.50

Finding the Fourth Proportional to 18,375.62, 25,362.86 and 10,422.50

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Solution

The fourth proportional to 18,375.62, 25,362.86 and 10,422.50 is: 14,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.62 : 25,362.86 = 10,422.50 : x
  2. Step 2: Convert to fraction form
    18,375.62/25,362.86 = 10,422.50/x
  3. Step 3: Cross multiply
    18,375.62x = 25,362.86 × 10,422.50
  4. Step 4: Simplify right side
    18,375.62x = 264,344,229.42
  5. Step 5: Solve for x
    x = 264,344,229.42/18,375.62
  6. Step 6: Final answer
    x = 14,385.60

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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.