Home / 12,976.24-17,908.04-7,387.28

Finding the Fourth Proportional to 12,976.24, 17,908.04 and 7,387.28

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Solution

The fourth proportional to 12,976.24, 17,908.04 and 7,387.28 is: 10,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.24 : 17,908.04 = 7,387.28 : x
  2. Step 2: Convert to fraction form
    12,976.24/17,908.04 = 7,387.28/x
  3. Step 3: Cross multiply
    12,976.24x = 17,908.04 × 7,387.28
  4. Step 4: Simplify right side
    12,976.24x = 132,291,705.73
  5. Step 5: Solve for x
    x = 132,291,705.73/12,976.24
  6. Step 6: Final answer
    x = 10,194.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.