Home / 7,422.09-10,229.67-6,471.96

Finding the Fourth Proportional to 7,422.09, 10,229.67 and 6,471.96

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Solution

The fourth proportional to 7,422.09, 10,229.67 and 6,471.96 is: 8,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.09 : 10,229.67 = 6,471.96 : x
  2. Step 2: Convert to fraction form
    7,422.09/10,229.67 = 6,471.96/x
  3. Step 3: Cross multiply
    7,422.09x = 10,229.67 × 6,471.96
  4. Step 4: Simplify right side
    7,422.09x = 66,206,015.05
  5. Step 5: Solve for x
    x = 66,206,015.05/7,422.09
  6. Step 6: Final answer
    x = 8,920.13

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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.