Home / 10,433.54-15,639.78-6,540.68

Finding the Fourth Proportional to 10,433.54, 15,639.78 and 6,540.68

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Solution

The fourth proportional to 10,433.54, 15,639.78 and 6,540.68 is: 9,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,433.54 : 15,639.78 = 6,540.68 : x
  2. Step 2: Convert to fraction form
    10,433.54/15,639.78 = 6,540.68/x
  3. Step 3: Cross multiply
    10,433.54x = 15,639.78 × 6,540.68
  4. Step 4: Simplify right side
    10,433.54x = 102,294,796.25
  5. Step 5: Solve for x
    x = 102,294,796.25/10,433.54
  6. Step 6: Final answer
    x = 9,804.42

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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.