Home / 7,973.12-11,959.98-2,129.73

Finding the Fourth Proportional to 7,973.12, 11,959.98 and 2,129.73

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Solution

The fourth proportional to 7,973.12, 11,959.98 and 2,129.73 is: 3,194.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.12 : 11,959.98 = 2,129.73 : x
  2. Step 2: Convert to fraction form
    7,973.12/11,959.98 = 2,129.73/x
  3. Step 3: Cross multiply
    7,973.12x = 11,959.98 × 2,129.73
  4. Step 4: Simplify right side
    7,973.12x = 25,471,528.21
  5. Step 5: Solve for x
    x = 25,471,528.21/7,973.12
  6. Step 6: Final answer
    x = 3,194.68

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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.