Home / 7,959.39-11,938.15-2,116.45

Finding the Fourth Proportional to 7,959.39, 11,938.15 and 2,116.45

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Solution

The fourth proportional to 7,959.39, 11,938.15 and 2,116.45 is: 3,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.39 : 11,938.15 = 2,116.45 : x
  2. Step 2: Convert to fraction form
    7,959.39/11,938.15 = 2,116.45/x
  3. Step 3: Cross multiply
    7,959.39x = 11,938.15 × 2,116.45
  4. Step 4: Simplify right side
    7,959.39x = 25,266,497.57
  5. Step 5: Solve for x
    x = 25,266,497.57/7,959.39
  6. Step 6: Final answer
    x = 3,174.43

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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.