Home / 6,926.87-10,388.99-1,861.13

Finding the Fourth Proportional to 6,926.87, 10,388.99 and 1,861.13

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Solution

The fourth proportional to 6,926.87, 10,388.99 and 1,861.13 is: 2,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,926.87 : 10,388.99 = 1,861.13 : x
  2. Step 2: Convert to fraction form
    6,926.87/10,388.99 = 1,861.13/x
  3. Step 3: Cross multiply
    6,926.87x = 10,388.99 × 1,861.13
  4. Step 4: Simplify right side
    6,926.87x = 19,335,213.67
  5. Step 5: Solve for x
    x = 19,335,213.67/6,926.87
  6. Step 6: Final answer
    x = 2,791.34

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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.