Home / 12,565.88-17,340.78-6,976.92

Finding the Fourth Proportional to 12,565.88, 17,340.78 and 6,976.92

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Solution

The fourth proportional to 12,565.88, 17,340.78 and 6,976.92 is: 9,628.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.88 : 17,340.78 = 6,976.92 : x
  2. Step 2: Convert to fraction form
    12,565.88/17,340.78 = 6,976.92/x
  3. Step 3: Cross multiply
    12,565.88x = 17,340.78 × 6,976.92
  4. Step 4: Simplify right side
    12,565.88x = 120,985,234.80
  5. Step 5: Solve for x
    x = 120,985,234.80/12,565.88
  6. Step 6: Final answer
    x = 9,628.07

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Double scale
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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.