Home / 18,780.27-25,908.69-10,817.76

Finding the Fourth Proportional to 18,780.27, 25,908.69 and 10,817.76

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Solution

The fourth proportional to 18,780.27, 25,908.69 and 10,817.76 is: 14,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.27 : 25,908.69 = 10,817.76 : x
  2. Step 2: Convert to fraction form
    18,780.27/25,908.69 = 10,817.76/x
  3. Step 3: Cross multiply
    18,780.27x = 25,908.69 × 10,817.76
  4. Step 4: Simplify right side
    18,780.27x = 280,273,990.33
  5. Step 5: Solve for x
    x = 280,273,990.33/18,780.27
  6. Step 6: Final answer
    x = 14,923.85

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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.