Home / 12,531.42-18,775.26-11,175.48

Finding the Fourth Proportional to 12,531.42, 18,775.26 and 11,175.48

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Solution

The fourth proportional to 12,531.42, 18,775.26 and 11,175.48 is: 16,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.42 : 18,775.26 = 11,175.48 : x
  2. Step 2: Convert to fraction form
    12,531.42/18,775.26 = 11,175.48/x
  3. Step 3: Cross multiply
    12,531.42x = 18,775.26 × 11,175.48
  4. Step 4: Simplify right side
    12,531.42x = 209,822,542.62
  5. Step 5: Solve for x
    x = 209,822,542.62/12,531.42
  6. Step 6: Final answer
    x = 16,743.72

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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.