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Finding the Fourth Proportional to 8,803.76, 13,205.76 and 2,647.76

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Solution

The fourth proportional to 8,803.76, 13,205.76 and 2,647.76 is: 3,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.76 : 13,205.76 = 2,647.76 : x
  2. Step 2: Convert to fraction form
    8,803.76/13,205.76 = 2,647.76/x
  3. Step 3: Cross multiply
    8,803.76x = 13,205.76 × 2,647.76
  4. Step 4: Simplify right side
    8,803.76x = 34,965,683.10
  5. Step 5: Solve for x
    x = 34,965,683.10/8,803.76
  6. Step 6: Final answer
    x = 3,971.68

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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.