Home / 12,270.94-18,393.63-5,691.70

Finding the Fourth Proportional to 12,270.94, 18,393.63 and 5,691.70

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Solution

The fourth proportional to 12,270.94, 18,393.63 and 5,691.70 is: 8,531.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.94 : 18,393.63 = 5,691.70 : x
  2. Step 2: Convert to fraction form
    12,270.94/18,393.63 = 5,691.70/x
  3. Step 3: Cross multiply
    12,270.94x = 18,393.63 × 5,691.70
  4. Step 4: Simplify right side
    12,270.94x = 104,691,023.87
  5. Step 5: Solve for x
    x = 104,691,023.87/12,270.94
  6. Step 6: Final answer
    x = 8,531.62

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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.