Home / 10,346.38-15,519.39-2,555.20

Finding the Fourth Proportional to 10,346.38, 15,519.39 and 2,555.20

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Solution

The fourth proportional to 10,346.38, 15,519.39 and 2,555.20 is: 3,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,346.38 : 15,519.39 = 2,555.20 : x
  2. Step 2: Convert to fraction form
    10,346.38/15,519.39 = 2,555.20/x
  3. Step 3: Cross multiply
    10,346.38x = 15,519.39 × 2,555.20
  4. Step 4: Simplify right side
    10,346.38x = 39,655,145.33
  5. Step 5: Solve for x
    x = 39,655,145.33/10,346.38
  6. Step 6: Final answer
    x = 3,832.76

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Half scale
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Double scale
Find fourth proportional to 10,347.38, 15,520.89 and 2,556.20
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.