Home / 12,439.82-17,167.34-6,774.80

Finding the Fourth Proportional to 12,439.82, 17,167.34 and 6,774.80

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Solution

The fourth proportional to 12,439.82, 17,167.34 and 6,774.80 is: 9,349.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.82 : 17,167.34 = 6,774.80 : x
  2. Step 2: Convert to fraction form
    12,439.82/17,167.34 = 6,774.80/x
  3. Step 3: Cross multiply
    12,439.82x = 17,167.34 × 6,774.80
  4. Step 4: Simplify right side
    12,439.82x = 116,305,175.32
  5. Step 5: Solve for x
    x = 116,305,175.32/12,439.82
  6. Step 6: Final answer
    x = 9,349.43

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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.