Home / 12,132.60-18,175.86-9,367.80

Finding the Fourth Proportional to 12,132.60, 18,175.86 and 9,367.80

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Solution

The fourth proportional to 12,132.60, 18,175.86 and 9,367.80 is: 14,033.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.60 : 18,175.86 = 9,367.80 : x
  2. Step 2: Convert to fraction form
    12,132.60/18,175.86 = 9,367.80/x
  3. Step 3: Cross multiply
    12,132.60x = 18,175.86 × 9,367.80
  4. Step 4: Simplify right side
    12,132.60x = 170,267,821.31
  5. Step 5: Solve for x
    x = 170,267,821.31/12,132.60
  6. Step 6: Final answer
    x = 14,033.91

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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.