Home / 7,680.86-11,517.67-4,561.28

Finding the Fourth Proportional to 7,680.86, 11,517.67 and 4,561.28

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Solution

The fourth proportional to 7,680.86, 11,517.67 and 4,561.28 is: 6,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.86 : 11,517.67 = 4,561.28 : x
  2. Step 2: Convert to fraction form
    7,680.86/11,517.67 = 4,561.28/x
  3. Step 3: Cross multiply
    7,680.86x = 11,517.67 × 4,561.28
  4. Step 4: Simplify right side
    7,680.86x = 52,535,237.42
  5. Step 5: Solve for x
    x = 52,535,237.42/7,680.86
  6. Step 6: Final answer
    x = 6,839.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.