Home / 8,808.08-12,156.69-6,690.62

Finding the Fourth Proportional to 8,808.08, 12,156.69 and 6,690.62

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Solution

The fourth proportional to 8,808.08, 12,156.69 and 6,690.62 is: 9,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.08 : 12,156.69 = 6,690.62 : x
  2. Step 2: Convert to fraction form
    8,808.08/12,156.69 = 6,690.62/x
  3. Step 3: Cross multiply
    8,808.08x = 12,156.69 × 6,690.62
  4. Step 4: Simplify right side
    8,808.08x = 81,335,793.25
  5. Step 5: Solve for x
    x = 81,335,793.25/8,808.08
  6. Step 6: Final answer
    x = 9,234.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.