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Finding the Fourth Proportional to 8,808.10, 13,219.35 and 8,520.10

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Solution

The fourth proportional to 8,808.10, 13,219.35 and 8,520.10 is: 12,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.10 : 13,219.35 = 8,520.10 : x
  2. Step 2: Convert to fraction form
    8,808.10/13,219.35 = 8,520.10/x
  3. Step 3: Cross multiply
    8,808.10x = 13,219.35 × 8,520.10
  4. Step 4: Simplify right side
    8,808.10x = 112,630,183.94
  5. Step 5: Solve for x
    x = 112,630,183.94/8,808.10
  6. Step 6: Final answer
    x = 12,787.11

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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.