Home / 18,385.47-25,372.97-10,427.86

Finding the Fourth Proportional to 18,385.47, 25,372.97 and 10,427.86

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Solution

The fourth proportional to 18,385.47, 25,372.97 and 10,427.86 is: 14,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.47 : 25,372.97 = 10,427.86 : x
  2. Step 2: Convert to fraction form
    18,385.47/25,372.97 = 10,427.86/x
  3. Step 3: Cross multiply
    18,385.47x = 25,372.97 × 10,427.86
  4. Step 4: Simplify right side
    18,385.47x = 264,585,778.94
  5. Step 5: Solve for x
    x = 264,585,778.94/18,385.47
  6. Step 6: Final answer
    x = 14,391.03

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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.