Home / 10,479.38-15,723.62-3,904.71

Finding the Fourth Proportional to 10,479.38, 15,723.62 and 3,904.71

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Solution

The fourth proportional to 10,479.38, 15,723.62 and 3,904.71 is: 5,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.38 : 15,723.62 = 3,904.71 : x
  2. Step 2: Convert to fraction form
    10,479.38/15,723.62 = 3,904.71/x
  3. Step 3: Cross multiply
    10,479.38x = 15,723.62 × 3,904.71
  4. Step 4: Simplify right side
    10,479.38x = 61,396,112.41
  5. Step 5: Solve for x
    x = 61,396,112.41/10,479.38
  6. Step 6: Final answer
    x = 5,858.76

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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.