Home / 10,791.68-16,190.40-3,866.88

Finding the Fourth Proportional to 10,791.68, 16,190.40 and 3,866.88

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Solution

The fourth proportional to 10,791.68, 16,190.40 and 3,866.88 is: 5,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.68 : 16,190.40 = 3,866.88 : x
  2. Step 2: Convert to fraction form
    10,791.68/16,190.40 = 3,866.88/x
  3. Step 3: Cross multiply
    10,791.68x = 16,190.40 × 3,866.88
  4. Step 4: Simplify right side
    10,791.68x = 62,606,333.95
  5. Step 5: Solve for x
    x = 62,606,333.95/10,791.68
  6. Step 6: Final answer
    x = 5,801.35

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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.