Home / 12,132.78-18,197.72-4,233.92

Finding the Fourth Proportional to 12,132.78, 18,197.72 and 4,233.92

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Solution

The fourth proportional to 12,132.78, 18,197.72 and 4,233.92 is: 6,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.78 : 18,197.72 = 4,233.92 : x
  2. Step 2: Convert to fraction form
    12,132.78/18,197.72 = 4,233.92/x
  3. Step 3: Cross multiply
    12,132.78x = 18,197.72 × 4,233.92
  4. Step 4: Simplify right side
    12,132.78x = 77,047,690.66
  5. Step 5: Solve for x
    x = 77,047,690.66/12,132.78
  6. Step 6: Final answer
    x = 6,350.37

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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.