Home / 12,042.60-18,060.66-8,170.80

Finding the Fourth Proportional to 12,042.60, 18,060.66 and 8,170.80

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Solution

The fourth proportional to 12,042.60, 18,060.66 and 8,170.80 is: 12,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.60 : 18,060.66 = 8,170.80 : x
  2. Step 2: Convert to fraction form
    12,042.60/18,060.66 = 8,170.80/x
  3. Step 3: Cross multiply
    12,042.60x = 18,060.66 × 8,170.80
  4. Step 4: Simplify right side
    12,042.60x = 147,570,040.73
  5. Step 5: Solve for x
    x = 147,570,040.73/12,042.60
  6. Step 6: Final answer
    x = 12,254.00

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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.