Home / 18,704.89-25,812.98-11,155.52

Finding the Fourth Proportional to 18,704.89, 25,812.98 and 11,155.52

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Solution

The fourth proportional to 18,704.89, 25,812.98 and 11,155.52 is: 15,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.89 : 25,812.98 = 11,155.52 : x
  2. Step 2: Convert to fraction form
    18,704.89/25,812.98 = 11,155.52/x
  3. Step 3: Cross multiply
    18,704.89x = 25,812.98 × 11,155.52
  4. Step 4: Simplify right side
    18,704.89x = 287,957,265.24
  5. Step 5: Solve for x
    x = 287,957,265.24/18,704.89
  6. Step 6: Final answer
    x = 15,394.76

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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.