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Finding the Fourth Proportional to 10,879.44, 15,012.78 and 6,164.46

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Solution

The fourth proportional to 10,879.44, 15,012.78 and 6,164.46 is: 8,506.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.44 : 15,012.78 = 6,164.46 : x
  2. Step 2: Convert to fraction form
    10,879.44/15,012.78 = 6,164.46/x
  3. Step 3: Cross multiply
    10,879.44x = 15,012.78 × 6,164.46
  4. Step 4: Simplify right side
    10,879.44x = 92,545,681.80
  5. Step 5: Solve for x
    x = 92,545,681.80/10,879.44
  6. Step 6: Final answer
    x = 8,506.47

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