Home / 10,519.16-15,780.24-3,496.86

Finding the Fourth Proportional to 10,519.16, 15,780.24 and 3,496.86

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Solution

The fourth proportional to 10,519.16, 15,780.24 and 3,496.86 is: 5,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.16 : 15,780.24 = 3,496.86 : x
  2. Step 2: Convert to fraction form
    10,519.16/15,780.24 = 3,496.86/x
  3. Step 3: Cross multiply
    10,519.16x = 15,780.24 × 3,496.86
  4. Step 4: Simplify right side
    10,519.16x = 55,181,290.05
  5. Step 5: Solve for x
    x = 55,181,290.05/10,519.16
  6. Step 6: Final answer
    x = 5,245.79

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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.