Home / 12,704.59-19,058.73-3,940.21

Finding the Fourth Proportional to 12,704.59, 19,058.73 and 3,940.21

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Solution

The fourth proportional to 12,704.59, 19,058.73 and 3,940.21 is: 5,910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.59 : 19,058.73 = 3,940.21 : x
  2. Step 2: Convert to fraction form
    12,704.59/19,058.73 = 3,940.21/x
  3. Step 3: Cross multiply
    12,704.59x = 19,058.73 × 3,940.21
  4. Step 4: Simplify right side
    12,704.59x = 75,095,398.53
  5. Step 5: Solve for x
    x = 75,095,398.53/12,704.59
  6. Step 6: Final answer
    x = 5,910.89

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.