Home / 12,016.40-18,024.60-7,350.80

Finding the Fourth Proportional to 12,016.40, 18,024.60 and 7,350.80

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Solution

The fourth proportional to 12,016.40, 18,024.60 and 7,350.80 is: 11,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016.40 : 18,024.60 = 7,350.80 : x
  2. Step 2: Convert to fraction form
    12,016.40/18,024.60 = 7,350.80/x
  3. Step 3: Cross multiply
    12,016.40x = 18,024.60 × 7,350.80
  4. Step 4: Simplify right side
    12,016.40x = 132,495,229.68
  5. Step 5: Solve for x
    x = 132,495,229.68/12,016.40
  6. Step 6: Final answer
    x = 11,026.20

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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.