Home / 12,910.12-19,365.24-3,550.28

Finding the Fourth Proportional to 12,910.12, 19,365.24 and 3,550.28

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Solution

The fourth proportional to 12,910.12, 19,365.24 and 3,550.28 is: 5,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.12 : 19,365.24 = 3,550.28 : x
  2. Step 2: Convert to fraction form
    12,910.12/19,365.24 = 3,550.28/x
  3. Step 3: Cross multiply
    12,910.12x = 19,365.24 × 3,550.28
  4. Step 4: Simplify right side
    12,910.12x = 68,752,024.27
  5. Step 5: Solve for x
    x = 68,752,024.27/12,910.12
  6. Step 6: Final answer
    x = 5,325.44

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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.