Home / 7,708.97-11,562.56-2,162.76

Finding the Fourth Proportional to 7,708.97, 11,562.56 and 2,162.76

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Solution

The fourth proportional to 7,708.97, 11,562.56 and 2,162.76 is: 3,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.97 : 11,562.56 = 2,162.76 : x
  2. Step 2: Convert to fraction form
    7,708.97/11,562.56 = 2,162.76/x
  3. Step 3: Cross multiply
    7,708.97x = 11,562.56 × 2,162.76
  4. Step 4: Simplify right side
    7,708.97x = 25,007,031.45
  5. Step 5: Solve for x
    x = 25,007,031.45/7,708.97
  6. Step 6: Final answer
    x = 3,243.89

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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.