Home / 26,718.66-40,087.20-11,937.78

Finding the Fourth Proportional to 26,718.66, 40,087.20 and 11,937.78

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Solution

The fourth proportional to 26,718.66, 40,087.20 and 11,937.78 is: 17,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,718.66 : 40,087.20 = 11,937.78 : x
  2. Step 2: Convert to fraction form
    26,718.66/40,087.20 = 11,937.78/x
  3. Step 3: Cross multiply
    26,718.66x = 40,087.20 × 11,937.78
  4. Step 4: Simplify right side
    26,718.66x = 478,552,174.42
  5. Step 5: Solve for x
    x = 478,552,174.42/26,718.66
  6. Step 6: Final answer
    x = 17,910.78

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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.