Home / 8,265.80-12,397.33-2,719.21

Finding the Fourth Proportional to 8,265.80, 12,397.33 and 2,719.21

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Solution

The fourth proportional to 8,265.80, 12,397.33 and 2,719.21 is: 4,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.80 : 12,397.33 = 2,719.21 : x
  2. Step 2: Convert to fraction form
    8,265.80/12,397.33 = 2,719.21/x
  3. Step 3: Cross multiply
    8,265.80x = 12,397.33 × 2,719.21
  4. Step 4: Simplify right side
    8,265.80x = 33,710,930.11
  5. Step 5: Solve for x
    x = 33,710,930.11/8,265.80
  6. Step 6: Final answer
    x = 4,078.37

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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.