Home / 10,188.25-15,286.05-4,345.31

Finding the Fourth Proportional to 10,188.25, 15,286.05 and 4,345.31

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Solution

The fourth proportional to 10,188.25, 15,286.05 and 4,345.31 is: 6,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.25 : 15,286.05 = 4,345.31 : x
  2. Step 2: Convert to fraction form
    10,188.25/15,286.05 = 4,345.31/x
  3. Step 3: Cross multiply
    10,188.25x = 15,286.05 × 4,345.31
  4. Step 4: Simplify right side
    10,188.25x = 66,422,664.14
  5. Step 5: Solve for x
    x = 66,422,664.14/10,188.25
  6. Step 6: Final answer
    x = 6,519.54

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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.