Home / 7,689.80-11,505.62-4,571.48

Finding the Fourth Proportional to 7,689.80, 11,505.62 and 4,571.48

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Solution

The fourth proportional to 7,689.80, 11,505.62 and 4,571.48 is: 6,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.80 : 11,505.62 = 4,571.48 : x
  2. Step 2: Convert to fraction form
    7,689.80/11,505.62 = 4,571.48/x
  3. Step 3: Cross multiply
    7,689.80x = 11,505.62 × 4,571.48
  4. Step 4: Simplify right side
    7,689.80x = 52,597,711.72
  5. Step 5: Solve for x
    x = 52,597,711.72/7,689.80
  6. Step 6: Final answer
    x = 6,839.93

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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.