Home / 8,171.36-11,277.31-4,815.22

Finding the Fourth Proportional to 8,171.36, 11,277.31 and 4,815.22

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Solution

The fourth proportional to 8,171.36, 11,277.31 and 4,815.22 is: 6,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.36 : 11,277.31 = 4,815.22 : x
  2. Step 2: Convert to fraction form
    8,171.36/11,277.31 = 4,815.22/x
  3. Step 3: Cross multiply
    8,171.36x = 11,277.31 × 4,815.22
  4. Step 4: Simplify right side
    8,171.36x = 54,302,728.66
  5. Step 5: Solve for x
    x = 54,302,728.66/8,171.36
  6. Step 6: Final answer
    x = 6,645.49

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Half scale
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Double 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.