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Finding the Fourth Proportional to 8,163, 11,261.15 and 4,803.69

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Solution

The fourth proportional to 8,163, 11,261.15 and 4,803.69 is: 6,626.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163 : 11,261.15 = 4,803.69 : x
  2. Step 2: Convert to fraction form
    8,163/11,261.15 = 4,803.69/x
  3. Step 3: Cross multiply
    8,163x = 11,261.15 × 4,803.69
  4. Step 4: Simplify right side
    8,163x = 54,095,049.63
  5. Step 5: Solve for x
    x = 54,095,049.63/8,163
  6. Step 6: Final answer
    x = 6,626.86

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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.