Home / 18,310.50-25,265.45-11,503.46

Finding the Fourth Proportional to 18,310.50, 25,265.45 and 11,503.46

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Solution

The fourth proportional to 18,310.50, 25,265.45 and 11,503.46 is: 15,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.50 : 25,265.45 = 11,503.46 : x
  2. Step 2: Convert to fraction form
    18,310.50/25,265.45 = 11,503.46/x
  3. Step 3: Cross multiply
    18,310.50x = 25,265.45 × 11,503.46
  4. Step 4: Simplify right side
    18,310.50x = 290,640,185.38
  5. Step 5: Solve for x
    x = 290,640,185.38/18,310.50
  6. Step 6: Final answer
    x = 15,872.87

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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.