Home / 12,310.10-18,468.39-3,545.72

Finding the Fourth Proportional to 12,310.10, 18,468.39 and 3,545.72

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Solution

The fourth proportional to 12,310.10, 18,468.39 and 3,545.72 is: 5,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.10 : 18,468.39 = 3,545.72 : x
  2. Step 2: Convert to fraction form
    12,310.10/18,468.39 = 3,545.72/x
  3. Step 3: Cross multiply
    12,310.10x = 18,468.39 × 3,545.72
  4. Step 4: Simplify right side
    12,310.10x = 65,483,739.79
  5. Step 5: Solve for x
    x = 65,483,739.79/12,310.10
  6. Step 6: Final answer
    x = 5,319.51

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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.