Home / 13,067.52-18,023.44-8,531.20

Finding the Fourth Proportional to 13,067.52, 18,023.44 and 8,531.20

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Solution

The fourth proportional to 13,067.52, 18,023.44 and 8,531.20 is: 11,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.52 : 18,023.44 = 8,531.20 : x
  2. Step 2: Convert to fraction form
    13,067.52/18,023.44 = 8,531.20/x
  3. Step 3: Cross multiply
    13,067.52x = 18,023.44 × 8,531.20
  4. Step 4: Simplify right side
    13,067.52x = 153,761,571.33
  5. Step 5: Solve for x
    x = 153,761,571.33/13,067.52
  6. Step 6: Final answer
    x = 11,766.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.