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Finding the Fourth Proportional to 8,775.78, 13,163.67 and 4,388.82

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Solution

The fourth proportional to 8,775.78, 13,163.67 and 4,388.82 is: 6,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.78 : 13,163.67 = 4,388.82 : x
  2. Step 2: Convert to fraction form
    8,775.78/13,163.67 = 4,388.82/x
  3. Step 3: Cross multiply
    8,775.78x = 13,163.67 × 4,388.82
  4. Step 4: Simplify right side
    8,775.78x = 57,772,978.17
  5. Step 5: Solve for x
    x = 57,772,978.17/8,775.78
  6. Step 6: Final answer
    x = 6,583.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.