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Finding the Fourth Proportional to 8,808.72, 13,213.08 and 3,878.16

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Solution

The fourth proportional to 8,808.72, 13,213.08 and 3,878.16 is: 5,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.72 : 13,213.08 = 3,878.16 : x
  2. Step 2: Convert to fraction form
    8,808.72/13,213.08 = 3,878.16/x
  3. Step 3: Cross multiply
    8,808.72x = 13,213.08 × 3,878.16
  4. Step 4: Simplify right side
    8,808.72x = 51,242,438.33
  5. Step 5: Solve for x
    x = 51,242,438.33/8,808.72
  6. Step 6: Final answer
    x = 5,817.24

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Similar ratio
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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.