Home / 13,891.55-20,833.61-3,895.74

Finding the Fourth Proportional to 13,891.55, 20,833.61 and 3,895.74

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Solution

The fourth proportional to 13,891.55, 20,833.61 and 3,895.74 is: 5,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.55 : 20,833.61 = 3,895.74 : x
  2. Step 2: Convert to fraction form
    13,891.55/20,833.61 = 3,895.74/x
  3. Step 3: Cross multiply
    13,891.55x = 20,833.61 × 3,895.74
  4. Step 4: Simplify right side
    13,891.55x = 81,162,327.82
  5. Step 5: Solve for x
    x = 81,162,327.82/13,891.55
  6. Step 6: Final answer
    x = 5,842.57

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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.