Home / 10,220.52-15,330.79-3,201.09

Finding the Fourth Proportional to 10,220.52, 15,330.79 and 3,201.09

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Solution

The fourth proportional to 10,220.52, 15,330.79 and 3,201.09 is: 4,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.52 : 15,330.79 = 3,201.09 : x
  2. Step 2: Convert to fraction form
    10,220.52/15,330.79 = 3,201.09/x
  3. Step 3: Cross multiply
    10,220.52x = 15,330.79 × 3,201.09
  4. Step 4: Simplify right side
    10,220.52x = 49,075,190.23
  5. Step 5: Solve for x
    x = 49,075,190.23/10,220.52
  6. Step 6: Final answer
    x = 4,801.63

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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.