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Finding the Fourth Proportional to 8,565.36, 12,847.86 and 3,948.36

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Solution

The fourth proportional to 8,565.36, 12,847.86 and 3,948.36 is: 5,922.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.36 : 12,847.86 = 3,948.36 : x
  2. Step 2: Convert to fraction form
    8,565.36/12,847.86 = 3,948.36/x
  3. Step 3: Cross multiply
    8,565.36x = 12,847.86 × 3,948.36
  4. Step 4: Simplify right side
    8,565.36x = 50,727,976.51
  5. Step 5: Solve for x
    x = 50,727,976.51/8,565.36
  6. Step 6: Final answer
    x = 5,922.46

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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.