Home / 12,772.43-17,625.96-7,107.69

Finding the Fourth Proportional to 12,772.43, 17,625.96 and 7,107.69

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Solution

The fourth proportional to 12,772.43, 17,625.96 and 7,107.69 is: 9,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.43 : 17,625.96 = 7,107.69 : x
  2. Step 2: Convert to fraction form
    12,772.43/17,625.96 = 7,107.69/x
  3. Step 3: Cross multiply
    12,772.43x = 17,625.96 × 7,107.69
  4. Step 4: Simplify right side
    12,772.43x = 125,279,859.63
  5. Step 5: Solve for x
    x = 125,279,859.63/12,772.43
  6. Step 6: Final answer
    x = 9,808.62

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Half scale
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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.