Home / 8,216.17-11,340.07-5,231.32

Finding the Fourth Proportional to 8,216.17, 11,340.07 and 5,231.32

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Solution

The fourth proportional to 8,216.17, 11,340.07 and 5,231.32 is: 7,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.17 : 11,340.07 = 5,231.32 : x
  2. Step 2: Convert to fraction form
    8,216.17/11,340.07 = 5,231.32/x
  3. Step 3: Cross multiply
    8,216.17x = 11,340.07 × 5,231.32
  4. Step 4: Simplify right side
    8,216.17x = 59,323,493.56
  5. Step 5: Solve for x
    x = 59,323,493.56/8,216.17
  6. Step 6: Final answer
    x = 7,220.34

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Half scale
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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.