Home / 8,081.18-12,113.65-3,402.33

Finding the Fourth Proportional to 8,081.18, 12,113.65 and 3,402.33

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Solution

The fourth proportional to 8,081.18, 12,113.65 and 3,402.33 is: 5,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.18 : 12,113.65 = 3,402.33 : x
  2. Step 2: Convert to fraction form
    8,081.18/12,113.65 = 3,402.33/x
  3. Step 3: Cross multiply
    8,081.18x = 12,113.65 × 3,402.33
  4. Step 4: Simplify right side
    8,081.18x = 41,214,634.80
  5. Step 5: Solve for x
    x = 41,214,634.80/8,081.18
  6. Step 6: Final answer
    x = 5,100.08

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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.