Home / 10,207.20-14,084.84-5,731.44

Finding the Fourth Proportional to 10,207.20, 14,084.84 and 5,731.44

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Solution

The fourth proportional to 10,207.20, 14,084.84 and 5,731.44 is: 7,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.20 : 14,084.84 = 5,731.44 : x
  2. Step 2: Convert to fraction form
    10,207.20/14,084.84 = 5,731.44/x
  3. Step 3: Cross multiply
    10,207.20x = 14,084.84 × 5,731.44
  4. Step 4: Simplify right side
    10,207.20x = 80,726,344.95
  5. Step 5: Solve for x
    x = 80,726,344.95/10,207.20
  6. Step 6: Final answer
    x = 7,908.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.