Home / 9,891.19-13,650.16-5,414.94

Finding the Fourth Proportional to 9,891.19, 13,650.16 and 5,414.94

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Solution

The fourth proportional to 9,891.19, 13,650.16 and 5,414.94 is: 7,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.19 : 13,650.16 = 5,414.94 : x
  2. Step 2: Convert to fraction form
    9,891.19/13,650.16 = 5,414.94/x
  3. Step 3: Cross multiply
    9,891.19x = 13,650.16 × 5,414.94
  4. Step 4: Simplify right side
    9,891.19x = 73,914,715.60
  5. Step 5: Solve for x
    x = 73,914,715.60/9,891.19
  6. Step 6: Final answer
    x = 7,472.79

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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.