Home / 7,966.45-11,948.30-2,121.69

Finding the Fourth Proportional to 7,966.45, 11,948.30 and 2,121.69

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Solution

The fourth proportional to 7,966.45, 11,948.30 and 2,121.69 is: 3,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.45 : 11,948.30 = 2,121.69 : x
  2. Step 2: Convert to fraction form
    7,966.45/11,948.30 = 2,121.69/x
  3. Step 3: Cross multiply
    7,966.45x = 11,948.30 × 2,121.69
  4. Step 4: Simplify right side
    7,966.45x = 25,350,588.63
  5. Step 5: Solve for x
    x = 25,350,588.63/7,966.45
  6. Step 6: Final answer
    x = 3,182.17

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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.