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Finding the Fourth Proportional to 8,171.53, 12,255.16 and 2,622.01

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Solution

The fourth proportional to 8,171.53, 12,255.16 and 2,622.01 is: 3,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.53 : 12,255.16 = 2,622.01 : x
  2. Step 2: Convert to fraction form
    8,171.53/12,255.16 = 2,622.01/x
  3. Step 3: Cross multiply
    8,171.53x = 12,255.16 × 2,622.01
  4. Step 4: Simplify right side
    8,171.53x = 32,133,152.07
  5. Step 5: Solve for x
    x = 32,133,152.07/8,171.53
  6. Step 6: Final answer
    x = 3,932.33

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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.