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Finding the Fourth Proportional to 8,808.30, 13,212.45 and 8,468.10

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Solution

The fourth proportional to 8,808.30, 13,212.45 and 8,468.10 is: 12,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.30 : 13,212.45 = 8,468.10 : x
  2. Step 2: Convert to fraction form
    8,808.30/13,212.45 = 8,468.10/x
  3. Step 3: Cross multiply
    8,808.30x = 13,212.45 × 8,468.10
  4. Step 4: Simplify right side
    8,808.30x = 111,884,347.85
  5. Step 5: Solve for x
    x = 111,884,347.85/8,808.30
  6. Step 6: Final answer
    x = 12,702.15

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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.