Home / 8,605.10-12,904.92-3,339.74

Finding the Fourth Proportional to 8,605.10, 12,904.92 and 3,339.74

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Solution

The fourth proportional to 8,605.10, 12,904.92 and 3,339.74 is: 5,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.10 : 12,904.92 = 3,339.74 : x
  2. Step 2: Convert to fraction form
    8,605.10/12,904.92 = 3,339.74/x
  3. Step 3: Cross multiply
    8,605.10x = 12,904.92 × 3,339.74
  4. Step 4: Simplify right side
    8,605.10x = 43,099,109.78
  5. Step 5: Solve for x
    x = 43,099,109.78/8,605.10
  6. Step 6: Final answer
    x = 5,008.55

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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.