Home / 8,564.19-12,849.05-2,720.85

Finding the Fourth Proportional to 8,564.19, 12,849.05 and 2,720.85

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Solution

The fourth proportional to 8,564.19, 12,849.05 and 2,720.85 is: 4,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,564.19 : 12,849.05 = 2,720.85 : x
  2. Step 2: Convert to fraction form
    8,564.19/12,849.05 = 2,720.85/x
  3. Step 3: Cross multiply
    8,564.19x = 12,849.05 × 2,720.85
  4. Step 4: Simplify right side
    8,564.19x = 34,960,337.69
  5. Step 5: Solve for x
    x = 34,960,337.69/8,564.19
  6. Step 6: Final answer
    x = 4,082.15

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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.