Home / 13,791.76-20,691.09-4,432.60

Finding the Fourth Proportional to 13,791.76, 20,691.09 and 4,432.60

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Solution

The fourth proportional to 13,791.76, 20,691.09 and 4,432.60 is: 6,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.76 : 20,691.09 = 4,432.60 : x
  2. Step 2: Convert to fraction form
    13,791.76/20,691.09 = 4,432.60/x
  3. Step 3: Cross multiply
    13,791.76x = 20,691.09 × 4,432.60
  4. Step 4: Simplify right side
    13,791.76x = 91,715,325.53
  5. Step 5: Solve for x
    x = 91,715,325.53/13,791.76
  6. Step 6: Final answer
    x = 6,650.01

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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.