Home / 7,561.32-11,265.30-7,189.56

Finding the Fourth Proportional to 7,561.32, 11,265.30 and 7,189.56

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Solution

The fourth proportional to 7,561.32, 11,265.30 and 7,189.56 is: 10,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,561.32 : 11,265.30 = 7,189.56 : x
  2. Step 2: Convert to fraction form
    7,561.32/11,265.30 = 7,189.56/x
  3. Step 3: Cross multiply
    7,561.32x = 11,265.30 × 7,189.56
  4. Step 4: Simplify right side
    7,561.32x = 80,992,550.27
  5. Step 5: Solve for x
    x = 80,992,550.27/7,561.32
  6. Step 6: Final answer
    x = 10,711.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.