Home / 9,721.42-13,414.21-5,471.75

Finding the Fourth Proportional to 9,721.42, 13,414.21 and 5,471.75

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Solution

The fourth proportional to 9,721.42, 13,414.21 and 5,471.75 is: 7,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.42 : 13,414.21 = 5,471.75 : x
  2. Step 2: Convert to fraction form
    9,721.42/13,414.21 = 5,471.75/x
  3. Step 3: Cross multiply
    9,721.42x = 13,414.21 × 5,471.75
  4. Step 4: Simplify right side
    9,721.42x = 73,399,223.42
  5. Step 5: Solve for x
    x = 73,399,223.42/9,721.42
  6. Step 6: Final answer
    x = 7,550.26

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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.