Home / 8,354.35-12,531.54-3,423.10

Finding the Fourth Proportional to 8,354.35, 12,531.54 and 3,423.10

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Solution

The fourth proportional to 8,354.35, 12,531.54 and 3,423.10 is: 5,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.35 : 12,531.54 = 3,423.10 : x
  2. Step 2: Convert to fraction form
    8,354.35/12,531.54 = 3,423.10/x
  3. Step 3: Cross multiply
    8,354.35x = 12,531.54 × 3,423.10
  4. Step 4: Simplify right side
    8,354.35x = 42,896,745.90
  5. Step 5: Solve for x
    x = 42,896,745.90/8,354.35
  6. Step 6: Final answer
    x = 5,134.66

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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.