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Finding the Fourth Proportional to 9,181.80, 12,670.02 and 6,352.20

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Solution

The fourth proportional to 9,181.80, 12,670.02 and 6,352.20 is: 8,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.80 : 12,670.02 = 6,352.20 : x
  2. Step 2: Convert to fraction form
    9,181.80/12,670.02 = 6,352.20/x
  3. Step 3: Cross multiply
    9,181.80x = 12,670.02 × 6,352.20
  4. Step 4: Simplify right side
    9,181.80x = 80,482,501.04
  5. Step 5: Solve for x
    x = 80,482,501.04/9,181.80
  6. Step 6: Final answer
    x = 8,765.44

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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.