Home / 12,115.61-18,175.86-4,324.22

Finding the Fourth Proportional to 12,115.61, 18,175.86 and 4,324.22

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Solution

The fourth proportional to 12,115.61, 18,175.86 and 4,324.22 is: 6,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.61 : 18,175.86 = 4,324.22 : x
  2. Step 2: Convert to fraction form
    12,115.61/18,175.86 = 4,324.22/x
  3. Step 3: Cross multiply
    12,115.61x = 18,175.86 × 4,324.22
  4. Step 4: Simplify right side
    12,115.61x = 78,596,395.71
  5. Step 5: Solve for x
    x = 78,596,395.71/12,115.61
  6. Step 6: Final answer
    x = 6,487.20

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1.5x scale

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.