Home / 10,573.98-15,857.73-2,781.78

Finding the Fourth Proportional to 10,573.98, 15,857.73 and 2,781.78

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Solution

The fourth proportional to 10,573.98, 15,857.73 and 2,781.78 is: 4,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,573.98 : 15,857.73 = 2,781.78 : x
  2. Step 2: Convert to fraction form
    10,573.98/15,857.73 = 2,781.78/x
  3. Step 3: Cross multiply
    10,573.98x = 15,857.73 × 2,781.78
  4. Step 4: Simplify right side
    10,573.98x = 44,112,716.16
  5. Step 5: Solve for x
    x = 44,112,716.16/10,573.98
  6. Step 6: Final answer
    x = 4,171.82

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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.