Home / 9,395.28-12,976.12-6,405.96

Finding the Fourth Proportional to 9,395.28, 12,976.12 and 6,405.96

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Solution

The fourth proportional to 9,395.28, 12,976.12 and 6,405.96 is: 8,847.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.28 : 12,976.12 = 6,405.96 : x
  2. Step 2: Convert to fraction form
    9,395.28/12,976.12 = 6,405.96/x
  3. Step 3: Cross multiply
    9,395.28x = 12,976.12 × 6,405.96
  4. Step 4: Simplify right side
    9,395.28x = 83,124,505.68
  5. Step 5: Solve for x
    x = 83,124,505.68/9,395.28
  6. Step 6: Final answer
    x = 8,847.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.