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Finding the Fourth Proportional to 9,199.64, 12,695.38 and 8,446.50

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Solution

The fourth proportional to 9,199.64, 12,695.38 and 8,446.50 is: 11,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.64 : 12,695.38 = 8,446.50 : x
  2. Step 2: Convert to fraction form
    9,199.64/12,695.38 = 8,446.50/x
  3. Step 3: Cross multiply
    9,199.64x = 12,695.38 × 8,446.50
  4. Step 4: Simplify right side
    9,199.64x = 107,231,506.05
  5. Step 5: Solve for x
    x = 107,231,506.05/9,199.64
  6. Step 6: Final answer
    x = 11,656.05

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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.