Home / 26,913.96-40,370.97-12,120.12

Finding the Fourth Proportional to 26,913.96, 40,370.97 and 12,120.12

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Solution

The fourth proportional to 26,913.96, 40,370.97 and 12,120.12 is: 18,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,913.96 : 40,370.97 = 12,120.12 : x
  2. Step 2: Convert to fraction form
    26,913.96/40,370.97 = 12,120.12/x
  3. Step 3: Cross multiply
    26,913.96x = 40,370.97 × 12,120.12
  4. Step 4: Simplify right side
    26,913.96x = 489,301,000.92
  5. Step 5: Solve for x
    x = 489,301,000.92/26,913.96
  6. Step 6: Final answer
    x = 18,180.19

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Similar ratio
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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.