Home / 9,086.86-13,631.10-3,891.52

Finding the Fourth Proportional to 9,086.86, 13,631.10 and 3,891.52

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Solution

The fourth proportional to 9,086.86, 13,631.10 and 3,891.52 is: 5,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,086.86 : 13,631.10 = 3,891.52 : x
  2. Step 2: Convert to fraction form
    9,086.86/13,631.10 = 3,891.52/x
  3. Step 3: Cross multiply
    9,086.86x = 13,631.10 × 3,891.52
  4. Step 4: Simplify right side
    9,086.86x = 53,045,698.27
  5. Step 5: Solve for x
    x = 53,045,698.27/9,086.86
  6. Step 6: Final answer
    x = 5,837.63

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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.