Home / 13,285.38-19,917.18-6,261.96

Finding the Fourth Proportional to 13,285.38, 19,917.18 and 6,261.96

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Solution

The fourth proportional to 13,285.38, 19,917.18 and 6,261.96 is: 9,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.38 : 19,917.18 = 6,261.96 : x
  2. Step 2: Convert to fraction form
    13,285.38/19,917.18 = 6,261.96/x
  3. Step 3: Cross multiply
    13,285.38x = 19,917.18 × 6,261.96
  4. Step 4: Simplify right side
    13,285.38x = 124,720,584.47
  5. Step 5: Solve for x
    x = 124,720,584.47/13,285.38
  6. Step 6: Final answer
    x = 9,387.81

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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.