Home / 12,910.52-19,365.88-5,511.16

Finding the Fourth Proportional to 12,910.52, 19,365.88 and 5,511.16

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Solution

The fourth proportional to 12,910.52, 19,365.88 and 5,511.16 is: 8,266.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.52 : 19,365.88 = 5,511.16 : x
  2. Step 2: Convert to fraction form
    12,910.52/19,365.88 = 5,511.16/x
  3. Step 3: Cross multiply
    12,910.52x = 19,365.88 × 5,511.16
  4. Step 4: Simplify right side
    12,910.52x = 106,728,463.22
  5. Step 5: Solve for x
    x = 106,728,463.22/12,910.52
  6. Step 6: Final answer
    x = 8,266.78

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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.