Home / 26,781.90-40,176.39-9,912.63

Finding the Fourth Proportional to 26,781.90, 40,176.39 and 9,912.63

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Solution

The fourth proportional to 26,781.90, 40,176.39 and 9,912.63 is: 14,870.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.90 : 40,176.39 = 9,912.63 : x
  2. Step 2: Convert to fraction form
    26,781.90/40,176.39 = 9,912.63/x
  3. Step 3: Cross multiply
    26,781.90x = 40,176.39 × 9,912.63
  4. Step 4: Simplify right side
    26,781.90x = 398,253,688.81
  5. Step 5: Solve for x
    x = 398,253,688.81/26,781.90
  6. Step 6: Final answer
    x = 14,870.26

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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.