Home / 8,774.38-13,161.30-2,931.04

Finding the Fourth Proportional to 8,774.38, 13,161.30 and 2,931.04

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Solution

The fourth proportional to 8,774.38, 13,161.30 and 2,931.04 is: 4,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.38 : 13,161.30 = 2,931.04 : x
  2. Step 2: Convert to fraction form
    8,774.38/13,161.30 = 2,931.04/x
  3. Step 3: Cross multiply
    8,774.38x = 13,161.30 × 2,931.04
  4. Step 4: Simplify right side
    8,774.38x = 38,576,296.75
  5. Step 5: Solve for x
    x = 38,576,296.75/8,774.38
  6. Step 6: Final answer
    x = 4,396.47

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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.