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Finding the Fourth Proportional to 8,855.80, 13,277.55 and 3,922.75

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Solution

The fourth proportional to 8,855.80, 13,277.55 and 3,922.75 is: 5,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.80 : 13,277.55 = 3,922.75 : x
  2. Step 2: Convert to fraction form
    8,855.80/13,277.55 = 3,922.75/x
  3. Step 3: Cross multiply
    8,855.80x = 13,277.55 × 3,922.75
  4. Step 4: Simplify right side
    8,855.80x = 52,084,509.26
  5. Step 5: Solve for x
    x = 52,084,509.26/8,855.80
  6. Step 6: Final answer
    x = 5,881.40

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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.