Home / 10,220.76-15,331.14-3,296.28

Finding the Fourth Proportional to 10,220.76, 15,331.14 and 3,296.28

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Solution

The fourth proportional to 10,220.76, 15,331.14 and 3,296.28 is: 4,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.76 : 15,331.14 = 3,296.28 : x
  2. Step 2: Convert to fraction form
    10,220.76/15,331.14 = 3,296.28/x
  3. Step 3: Cross multiply
    10,220.76x = 15,331.14 × 3,296.28
  4. Step 4: Simplify right side
    10,220.76x = 50,535,730.16
  5. Step 5: Solve for x
    x = 50,535,730.16/10,220.76
  6. Step 6: Final answer
    x = 4,944.42

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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.