Home / 26,781.41-40,175.60-9,912.12

Finding the Fourth Proportional to 26,781.41, 40,175.60 and 9,912.12

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Solution

The fourth proportional to 26,781.41, 40,175.60 and 9,912.12 is: 14,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.41 : 40,175.60 = 9,912.12 : x
  2. Step 2: Convert to fraction form
    26,781.41/40,175.60 = 9,912.12/x
  3. Step 3: Cross multiply
    26,781.41x = 40,175.60 × 9,912.12
  4. Step 4: Simplify right side
    26,781.41x = 398,225,318.71
  5. Step 5: Solve for x
    x = 398,225,318.71/26,781.41
  6. Step 6: Final answer
    x = 14,869.47

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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.