Home / 8,720.67-13,084.31-4,042.92

Finding the Fourth Proportional to 8,720.67, 13,084.31 and 4,042.92

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Solution

The fourth proportional to 8,720.67, 13,084.31 and 4,042.92 is: 6,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.67 : 13,084.31 = 4,042.92 : x
  2. Step 2: Convert to fraction form
    8,720.67/13,084.31 = 4,042.92/x
  3. Step 3: Cross multiply
    8,720.67x = 13,084.31 × 4,042.92
  4. Step 4: Simplify right side
    8,720.67x = 52,898,818.59
  5. Step 5: Solve for x
    x = 52,898,818.59/8,720.67
  6. Step 6: Final answer
    x = 6,065.91

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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.