Home / 10,519.41-15,776.39-3,122.13

Finding the Fourth Proportional to 10,519.41, 15,776.39 and 3,122.13

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Solution

The fourth proportional to 10,519.41, 15,776.39 and 3,122.13 is: 4,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.41 : 15,776.39 = 3,122.13 : x
  2. Step 2: Convert to fraction form
    10,519.41/15,776.39 = 3,122.13/x
  3. Step 3: Cross multiply
    10,519.41x = 15,776.39 × 3,122.13
  4. Step 4: Simplify right side
    10,519.41x = 49,255,924.90
  5. Step 5: Solve for x
    x = 49,255,924.90/10,519.41
  6. Step 6: Final answer
    x = 4,682.38

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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.