Home / 13,986.97-19,295.50-8,318.54

Finding the Fourth Proportional to 13,986.97, 19,295.50 and 8,318.54

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Solution

The fourth proportional to 13,986.97, 19,295.50 and 8,318.54 is: 11,475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.97 : 19,295.50 = 8,318.54 : x
  2. Step 2: Convert to fraction form
    13,986.97/19,295.50 = 8,318.54/x
  3. Step 3: Cross multiply
    13,986.97x = 19,295.50 × 8,318.54
  4. Step 4: Simplify right side
    13,986.97x = 160,510,374.85
  5. Step 5: Solve for x
    x = 160,510,374.85/13,986.97
  6. Step 6: Final answer
    x = 11,475.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.