Home / 10,938.73-16,408.10-3,147.55

Finding the Fourth Proportional to 10,938.73, 16,408.10 and 3,147.55

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Solution

The fourth proportional to 10,938.73, 16,408.10 and 3,147.55 is: 4,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.73 : 16,408.10 = 3,147.55 : x
  2. Step 2: Convert to fraction form
    10,938.73/16,408.10 = 3,147.55/x
  3. Step 3: Cross multiply
    10,938.73x = 16,408.10 × 3,147.55
  4. Step 4: Simplify right side
    10,938.73x = 51,645,315.16
  5. Step 5: Solve for x
    x = 51,645,315.16/10,938.73
  6. Step 6: Final answer
    x = 4,721.33

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Similar ratio
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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.