Home / 12,159.32-18,230.09-8,200.73

Finding the Fourth Proportional to 12,159.32, 18,230.09 and 8,200.73

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Solution

The fourth proportional to 12,159.32, 18,230.09 and 8,200.73 is: 12,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.32 : 18,230.09 = 8,200.73 : x
  2. Step 2: Convert to fraction form
    12,159.32/18,230.09 = 8,200.73/x
  3. Step 3: Cross multiply
    12,159.32x = 18,230.09 × 8,200.73
  4. Step 4: Simplify right side
    12,159.32x = 149,500,112.04
  5. Step 5: Solve for x
    x = 149,500,112.04/12,159.32
  6. Step 6: Final answer
    x = 12,295.11

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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.