Home / 7,959.14-11,937.77-2,116.20

Finding the Fourth Proportional to 7,959.14, 11,937.77 and 2,116.20

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Solution

The fourth proportional to 7,959.14, 11,937.77 and 2,116.20 is: 3,174.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.14 : 11,937.77 = 2,116.20 : x
  2. Step 2: Convert to fraction form
    7,959.14/11,937.77 = 2,116.20/x
  3. Step 3: Cross multiply
    7,959.14x = 11,937.77 × 2,116.20
  4. Step 4: Simplify right side
    7,959.14x = 25,262,708.87
  5. Step 5: Solve for x
    x = 25,262,708.87/7,959.14
  6. Step 6: Final answer
    x = 3,174.05

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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.