Home / 18,990.88-26,206.61-10,923.92

Finding the Fourth Proportional to 18,990.88, 26,206.61 and 10,923.92

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Solution

The fourth proportional to 18,990.88, 26,206.61 and 10,923.92 is: 15,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.88 : 26,206.61 = 10,923.92 : x
  2. Step 2: Convert to fraction form
    18,990.88/26,206.61 = 10,923.92/x
  3. Step 3: Cross multiply
    18,990.88x = 26,206.61 × 10,923.92
  4. Step 4: Simplify right side
    18,990.88x = 286,279,003.94
  5. Step 5: Solve for x
    x = 286,279,003.94/18,990.88
  6. Step 6: Final answer
    x = 15,074.55

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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.