Home / 12,626.81-17,425.13-6,961.78

Finding the Fourth Proportional to 12,626.81, 17,425.13 and 6,961.78

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Solution

The fourth proportional to 12,626.81, 17,425.13 and 6,961.78 is: 9,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.81 : 17,425.13 = 6,961.78 : x
  2. Step 2: Convert to fraction form
    12,626.81/17,425.13 = 6,961.78/x
  3. Step 3: Cross multiply
    12,626.81x = 17,425.13 × 6,961.78
  4. Step 4: Simplify right side
    12,626.81x = 121,309,843.16
  5. Step 5: Solve for x
    x = 121,309,843.16/12,626.81
  6. Step 6: Final answer
    x = 9,607.33

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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.