Home / 8,947.14-13,420.31-3,104.21

Finding the Fourth Proportional to 8,947.14, 13,420.31 and 3,104.21

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Solution

The fourth proportional to 8,947.14, 13,420.31 and 3,104.21 is: 4,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.14 : 13,420.31 = 3,104.21 : x
  2. Step 2: Convert to fraction form
    8,947.14/13,420.31 = 3,104.21/x
  3. Step 3: Cross multiply
    8,947.14x = 13,420.31 × 3,104.21
  4. Step 4: Simplify right side
    8,947.14x = 41,659,377.88
  5. Step 5: Solve for x
    x = 41,659,377.88/8,947.14
  6. Step 6: Final answer
    x = 4,656.17

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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.