Home / 8,526.33-12,790.19-2,979.55

Finding the Fourth Proportional to 8,526.33, 12,790.19 and 2,979.55

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Solution

The fourth proportional to 8,526.33, 12,790.19 and 2,979.55 is: 4,469.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526.33 : 12,790.19 = 2,979.55 : x
  2. Step 2: Convert to fraction form
    8,526.33/12,790.19 = 2,979.55/x
  3. Step 3: Cross multiply
    8,526.33x = 12,790.19 × 2,979.55
  4. Step 4: Simplify right side
    8,526.33x = 38,109,010.61
  5. Step 5: Solve for x
    x = 38,109,010.61/8,526.33
  6. Step 6: Final answer
    x = 4,469.57

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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.