Home / 18,839.50-28,263.78-5,691.08

Finding the Fourth Proportional to 18,839.50, 28,263.78 and 5,691.08

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Solution

The fourth proportional to 18,839.50, 28,263.78 and 5,691.08 is: 8,537.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.50 : 28,263.78 = 5,691.08 : x
  2. Step 2: Convert to fraction form
    18,839.50/28,263.78 = 5,691.08/x
  3. Step 3: Cross multiply
    18,839.50x = 28,263.78 × 5,691.08
  4. Step 4: Simplify right side
    18,839.50x = 160,851,433.08
  5. Step 5: Solve for x
    x = 160,851,433.08/18,839.50
  6. Step 6: Final answer
    x = 8,537.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.