Home / 18,844.88-26,003.21-12,139.61

Finding the Fourth Proportional to 18,844.88, 26,003.21 and 12,139.61

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Solution

The fourth proportional to 18,844.88, 26,003.21 and 12,139.61 is: 16,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.88 : 26,003.21 = 12,139.61 : x
  2. Step 2: Convert to fraction form
    18,844.88/26,003.21 = 12,139.61/x
  3. Step 3: Cross multiply
    18,844.88x = 26,003.21 × 12,139.61
  4. Step 4: Simplify right side
    18,844.88x = 315,668,637.43
  5. Step 5: Solve for x
    x = 315,668,637.43/18,844.88
  6. Step 6: Final answer
    x = 16,750.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.