Home / 7,475.80-11,161.13-5,711.56

Finding the Fourth Proportional to 7,475.80, 11,161.13 and 5,711.56

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Solution

The fourth proportional to 7,475.80, 11,161.13 and 5,711.56 is: 8,527.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.80 : 11,161.13 = 5,711.56 : x
  2. Step 2: Convert to fraction form
    7,475.80/11,161.13 = 5,711.56/x
  3. Step 3: Cross multiply
    7,475.80x = 11,161.13 × 5,711.56
  4. Step 4: Simplify right side
    7,475.80x = 63,747,463.66
  5. Step 5: Solve for x
    x = 63,747,463.66/7,475.80
  6. Step 6: Final answer
    x = 8,527.18

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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.