Home / 10,791.38-16,187.07-3,870.74

Finding the Fourth Proportional to 10,791.38, 16,187.07 and 3,870.74

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Solution

The fourth proportional to 10,791.38, 16,187.07 and 3,870.74 is: 5,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.38 : 16,187.07 = 3,870.74 : x
  2. Step 2: Convert to fraction form
    10,791.38/16,187.07 = 3,870.74/x
  3. Step 3: Cross multiply
    10,791.38x = 16,187.07 × 3,870.74
  4. Step 4: Simplify right side
    10,791.38x = 62,655,939.33
  5. Step 5: Solve for x
    x = 62,655,939.33/10,791.38
  6. Step 6: Final answer
    x = 5,806.11

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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.