Home / 12,695.16-17,517.66-7,390.92

Finding the Fourth Proportional to 12,695.16, 17,517.66 and 7,390.92

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Solution

The fourth proportional to 12,695.16, 17,517.66 and 7,390.92 is: 10,198.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.16 : 17,517.66 = 7,390.92 : x
  2. Step 2: Convert to fraction form
    12,695.16/17,517.66 = 7,390.92/x
  3. Step 3: Cross multiply
    12,695.16x = 17,517.66 × 7,390.92
  4. Step 4: Simplify right side
    12,695.16x = 129,471,623.65
  5. Step 5: Solve for x
    x = 129,471,623.65/12,695.16
  6. Step 6: Final answer
    x = 10,198.50

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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.