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Finding the Fourth Proportional to 8,816.40, 13,226.04 and 3,551.40

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Solution

The fourth proportional to 8,816.40, 13,226.04 and 3,551.40 is: 5,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.40 : 13,226.04 = 3,551.40 : x
  2. Step 2: Convert to fraction form
    8,816.40/13,226.04 = 3,551.40/x
  3. Step 3: Cross multiply
    8,816.40x = 13,226.04 × 3,551.40
  4. Step 4: Simplify right side
    8,816.40x = 46,970,958.46
  5. Step 5: Solve for x
    x = 46,970,958.46/8,816.40
  6. Step 6: Final answer
    x = 5,327.68

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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.