Home / 18,708.75-28,061.19-5,560.02

Finding the Fourth Proportional to 18,708.75, 28,061.19 and 5,560.02

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Solution

The fourth proportional to 18,708.75, 28,061.19 and 5,560.02 is: 8,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.75 : 28,061.19 = 5,560.02 : x
  2. Step 2: Convert to fraction form
    18,708.75/28,061.19 = 5,560.02/x
  3. Step 3: Cross multiply
    18,708.75x = 28,061.19 × 5,560.02
  4. Step 4: Simplify right side
    18,708.75x = 156,020,777.62
  5. Step 5: Solve for x
    x = 156,020,777.62/18,708.75
  6. Step 6: Final answer
    x = 8,339.45

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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.