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Finding the Fourth Proportional to 8,887.78, 13,323.85 and 3,627.21

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Solution

The fourth proportional to 8,887.78, 13,323.85 and 3,627.21 is: 5,437.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.78 : 13,323.85 = 3,627.21 : x
  2. Step 2: Convert to fraction form
    8,887.78/13,323.85 = 3,627.21/x
  3. Step 3: Cross multiply
    8,887.78x = 13,323.85 × 3,627.21
  4. Step 4: Simplify right side
    8,887.78x = 48,328,401.96
  5. Step 5: Solve for x
    x = 48,328,401.96/8,887.78
  6. Step 6: Final answer
    x = 5,437.62

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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.