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Finding the Fourth Proportional to 15,571.86, 23,362.11 and 8,986.02

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Solution

The fourth proportional to 15,571.86, 23,362.11 and 8,986.02 is: 13,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.86 : 23,362.11 = 8,986.02 : x
  2. Step 2: Convert to fraction form
    15,571.86/23,362.11 = 8,986.02/x
  3. Step 3: Cross multiply
    15,571.86x = 23,362.11 × 8,986.02
  4. Step 4: Simplify right side
    15,571.86x = 209,932,387.70
  5. Step 5: Solve for x
    x = 209,932,387.70/15,571.86
  6. Step 6: Final answer
    x = 13,481.52

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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.