Home / 12,170.85-18,254.20-3,403.73

Finding the Fourth Proportional to 12,170.85, 18,254.20 and 3,403.73

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Solution

The fourth proportional to 12,170.85, 18,254.20 and 3,403.73 is: 5,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.85 : 18,254.20 = 3,403.73 : x
  2. Step 2: Convert to fraction form
    12,170.85/18,254.20 = 3,403.73/x
  3. Step 3: Cross multiply
    12,170.85x = 18,254.20 × 3,403.73
  4. Step 4: Simplify right side
    12,170.85x = 62,132,368.17
  5. Step 5: Solve for x
    x = 62,132,368.17/12,170.85
  6. Step 6: Final answer
    x = 5,105.01

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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.