Home / 8,148.26-11,223.96-6,821.48

Finding the Fourth Proportional to 8,148.26, 11,223.96 and 6,821.48

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Solution

The fourth proportional to 8,148.26, 11,223.96 and 6,821.48 is: 9,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.26 : 11,223.96 = 6,821.48 : x
  2. Step 2: Convert to fraction form
    8,148.26/11,223.96 = 6,821.48/x
  3. Step 3: Cross multiply
    8,148.26x = 11,223.96 × 6,821.48
  4. Step 4: Simplify right side
    8,148.26x = 76,564,018.66
  5. Step 5: Solve for x
    x = 76,564,018.66/8,148.26
  6. Step 6: Final answer
    x = 9,396.36

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1.5x scale

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.