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Finding the Fourth Proportional to 8,163, 11,260.42 and 5,326.36

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Solution

The fourth proportional to 8,163, 11,260.42 and 5,326.36 is: 7,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163 : 11,260.42 = 5,326.36 : x
  2. Step 2: Convert to fraction form
    8,163/11,260.42 = 5,326.36/x
  3. Step 3: Cross multiply
    8,163x = 11,260.42 × 5,326.36
  4. Step 4: Simplify right side
    8,163x = 59,977,050.67
  5. Step 5: Solve for x
    x = 59,977,050.67/8,163
  6. Step 6: Final answer
    x = 7,347.43

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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.