Home / 7,247.72-9,998.30-4,728.66

Finding the Fourth Proportional to 7,247.72, 9,998.30 and 4,728.66

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Solution

The fourth proportional to 7,247.72, 9,998.30 and 4,728.66 is: 6,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247.72 : 9,998.30 = 4,728.66 : x
  2. Step 2: Convert to fraction form
    7,247.72/9,998.30 = 4,728.66/x
  3. Step 3: Cross multiply
    7,247.72x = 9,998.30 × 4,728.66
  4. Step 4: Simplify right side
    7,247.72x = 47,278,561.28
  5. Step 5: Solve for x
    x = 47,278,561.28/7,247.72
  6. Step 6: Final answer
    x = 6,523.23

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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.