Home / 10,537.77-15,814.46-4,991.13

Finding the Fourth Proportional to 10,537.77, 15,814.46 and 4,991.13

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Solution

The fourth proportional to 10,537.77, 15,814.46 and 4,991.13 is: 7,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,537.77 : 15,814.46 = 4,991.13 : x
  2. Step 2: Convert to fraction form
    10,537.77/15,814.46 = 4,991.13/x
  3. Step 3: Cross multiply
    10,537.77x = 15,814.46 × 4,991.13
  4. Step 4: Simplify right side
    10,537.77x = 78,932,049.15
  5. Step 5: Solve for x
    x = 78,932,049.15/10,537.77
  6. Step 6: Final answer
    x = 7,490.39

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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.