Home / 12,238.59-18,339.20-9,103.44

Finding the Fourth Proportional to 12,238.59, 18,339.20 and 9,103.44

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Solution

The fourth proportional to 12,238.59, 18,339.20 and 9,103.44 is: 13,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.59 : 18,339.20 = 9,103.44 : x
  2. Step 2: Convert to fraction form
    12,238.59/18,339.20 = 9,103.44/x
  3. Step 3: Cross multiply
    12,238.59x = 18,339.20 × 9,103.44
  4. Step 4: Simplify right side
    12,238.59x = 166,949,761.33
  5. Step 5: Solve for x
    x = 166,949,761.33/12,238.59
  6. Step 6: Final answer
    x = 13,641.26

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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.