Home / 8,947.90-13,425.81-3,108.70

Finding the Fourth Proportional to 8,947.90, 13,425.81 and 3,108.70

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Solution

The fourth proportional to 8,947.90, 13,425.81 and 3,108.70 is: 4,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.90 : 13,425.81 = 3,108.70 : x
  2. Step 2: Convert to fraction form
    8,947.90/13,425.81 = 3,108.70/x
  3. Step 3: Cross multiply
    8,947.90x = 13,425.81 × 3,108.70
  4. Step 4: Simplify right side
    8,947.90x = 41,736,815.55
  5. Step 5: Solve for x
    x = 41,736,815.55/8,947.90
  6. Step 6: Final answer
    x = 4,664.43

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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.