Home / 10,537.97-15,814.73-4,991.30

Finding the Fourth Proportional to 10,537.97, 15,814.73 and 4,991.30

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Solution

The fourth proportional to 10,537.97, 15,814.73 and 4,991.30 is: 7,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,537.97 : 15,814.73 = 4,991.30 : x
  2. Step 2: Convert to fraction form
    10,537.97/15,814.73 = 4,991.30/x
  3. Step 3: Cross multiply
    10,537.97x = 15,814.73 × 4,991.30
  4. Step 4: Simplify right side
    10,537.97x = 78,936,061.85
  5. Step 5: Solve for x
    x = 78,936,061.85/10,537.97
  6. Step 6: Final answer
    x = 7,490.63

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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.