Home / 12,499.25-18,732.60-11,175.30

Finding the Fourth Proportional to 12,499.25, 18,732.60 and 11,175.30

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Solution

The fourth proportional to 12,499.25, 18,732.60 and 11,175.30 is: 16,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,499.25 : 18,732.60 = 11,175.30 : x
  2. Step 2: Convert to fraction form
    12,499.25/18,732.60 = 11,175.30/x
  3. Step 3: Cross multiply
    12,499.25x = 18,732.60 × 11,175.30
  4. Step 4: Simplify right side
    12,499.25x = 209,342,424.78
  5. Step 5: Solve for x
    x = 209,342,424.78/12,499.25
  6. Step 6: Final answer
    x = 16,748.41

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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.