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Finding the Fourth Proportional to 10,287.86, 15,433.71 and 3,367.22

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Solution

The fourth proportional to 10,287.86, 15,433.71 and 3,367.22 is: 5,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.86 : 15,433.71 = 3,367.22 : x
  2. Step 2: Convert to fraction form
    10,287.86/15,433.71 = 3,367.22/x
  3. Step 3: Cross multiply
    10,287.86x = 15,433.71 × 3,367.22
  4. Step 4: Simplify right side
    10,287.86x = 51,968,696.99
  5. Step 5: Solve for x
    x = 51,968,696.99/10,287.86
  6. Step 6: Final answer
    x = 5,051.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.