Home / 8,605.18-12,906.24-5,475.90

Finding the Fourth Proportional to 8,605.18, 12,906.24 and 5,475.90

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Solution

The fourth proportional to 8,605.18, 12,906.24 and 5,475.90 is: 8,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.18 : 12,906.24 = 5,475.90 : x
  2. Step 2: Convert to fraction form
    8,605.18/12,906.24 = 5,475.90/x
  3. Step 3: Cross multiply
    8,605.18x = 12,906.24 × 5,475.90
  4. Step 4: Simplify right side
    8,605.18x = 70,673,252.24
  5. Step 5: Solve for x
    x = 70,673,252.24/8,605.18
  6. Step 6: Final answer
    x = 8,212.87

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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.