Home / 10,791.13-14,900.21-8,439.97

Finding the Fourth Proportional to 10,791.13, 14,900.21 and 8,439.97

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Solution

The fourth proportional to 10,791.13, 14,900.21 and 8,439.97 is: 11,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.13 : 14,900.21 = 8,439.97 : x
  2. Step 2: Convert to fraction form
    10,791.13/14,900.21 = 8,439.97/x
  3. Step 3: Cross multiply
    10,791.13x = 14,900.21 × 8,439.97
  4. Step 4: Simplify right side
    10,791.13x = 125,757,283.19
  5. Step 5: Solve for x
    x = 125,757,283.19/10,791.13
  6. Step 6: Final answer
    x = 11,653.76

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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.