Home / 8,474.44-12,688.17-6,388.12

Finding the Fourth Proportional to 8,474.44, 12,688.17 and 6,388.12

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Solution

The fourth proportional to 8,474.44, 12,688.17 and 6,388.12 is: 9,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.44 : 12,688.17 = 6,388.12 : x
  2. Step 2: Convert to fraction form
    8,474.44/12,688.17 = 6,388.12/x
  3. Step 3: Cross multiply
    8,474.44x = 12,688.17 × 6,388.12
  4. Step 4: Simplify right side
    8,474.44x = 81,053,552.54
  5. Step 5: Solve for x
    x = 81,053,552.54/8,474.44
  6. Step 6: Final answer
    x = 9,564.47

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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.