Home / 26,721.50-40,087.10-9,187.43

Finding the Fourth Proportional to 26,721.50, 40,087.10 and 9,187.43

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Solution

The fourth proportional to 26,721.50, 40,087.10 and 9,187.43 is: 13,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,721.50 : 40,087.10 = 9,187.43 : x
  2. Step 2: Convert to fraction form
    26,721.50/40,087.10 = 9,187.43/x
  3. Step 3: Cross multiply
    26,721.50x = 40,087.10 × 9,187.43
  4. Step 4: Simplify right side
    26,721.50x = 368,297,247.69
  5. Step 5: Solve for x
    x = 368,297,247.69/26,721.50
  6. Step 6: Final answer
    x = 13,782.81

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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.