Home / 9,891.04-13,649.57-5,414.75

Finding the Fourth Proportional to 9,891.04, 13,649.57 and 5,414.75

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Solution

The fourth proportional to 9,891.04, 13,649.57 and 5,414.75 is: 7,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.04 : 13,649.57 = 5,414.75 : x
  2. Step 2: Convert to fraction form
    9,891.04/13,649.57 = 5,414.75/x
  3. Step 3: Cross multiply
    9,891.04x = 13,649.57 × 5,414.75
  4. Step 4: Simplify right side
    9,891.04x = 73,909,009.16
  5. Step 5: Solve for x
    x = 73,909,009.16/9,891.04
  6. Step 6: Final answer
    x = 7,472.32

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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.