Home / 8,738.34-13,107.60-3,191.64

Finding the Fourth Proportional to 8,738.34, 13,107.60 and 3,191.64

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Solution

The fourth proportional to 8,738.34, 13,107.60 and 3,191.64 is: 4,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.34 : 13,107.60 = 3,191.64 : x
  2. Step 2: Convert to fraction form
    8,738.34/13,107.60 = 3,191.64/x
  3. Step 3: Cross multiply
    8,738.34x = 13,107.60 × 3,191.64
  4. Step 4: Simplify right side
    8,738.34x = 41,834,740.46
  5. Step 5: Solve for x
    x = 41,834,740.46/8,738.34
  6. Step 6: Final answer
    x = 4,787.49

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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.