Home / 7,983.12-11,976.24-2,436.72

Finding the Fourth Proportional to 7,983.12, 11,976.24 and 2,436.72

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Solution

The fourth proportional to 7,983.12, 11,976.24 and 2,436.72 is: 3,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.12 : 11,976.24 = 2,436.72 : x
  2. Step 2: Convert to fraction form
    7,983.12/11,976.24 = 2,436.72/x
  3. Step 3: Cross multiply
    7,983.12x = 11,976.24 × 2,436.72
  4. Step 4: Simplify right side
    7,983.12x = 29,182,743.53
  5. Step 5: Solve for x
    x = 29,182,743.53/7,983.12
  6. Step 6: Final answer
    x = 3,655.56

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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.