Home / 13,789.56-20,671.98-5,464

Finding the Fourth Proportional to 13,789.56, 20,671.98 and 5,464

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Solution

The fourth proportional to 13,789.56, 20,671.98 and 5,464 is: 8,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.56 : 20,671.98 = 5,464 : x
  2. Step 2: Convert to fraction form
    13,789.56/20,671.98 = 5,464/x
  3. Step 3: Cross multiply
    13,789.56x = 20,671.98 × 5,464
  4. Step 4: Simplify right side
    13,789.56x = 112,951,698.72
  5. Step 5: Solve for x
    x = 112,951,698.72/13,789.56
  6. Step 6: Final answer
    x = 8,191.10

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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.