Home / 12,270.96-18,393.60-5,691.68

Finding the Fourth Proportional to 12,270.96, 18,393.60 and 5,691.68

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Solution

The fourth proportional to 12,270.96, 18,393.60 and 5,691.68 is: 8,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.96 : 18,393.60 = 5,691.68 : x
  2. Step 2: Convert to fraction form
    12,270.96/18,393.60 = 5,691.68/x
  3. Step 3: Cross multiply
    12,270.96x = 18,393.60 × 5,691.68
  4. Step 4: Simplify right side
    12,270.96x = 104,690,485.25
  5. Step 5: Solve for x
    x = 104,690,485.25/12,270.96
  6. Step 6: Final answer
    x = 8,531.56

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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.