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Finding the Fourth Proportional to 8,322.62, 12,484.22 and 3,640.24

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Solution

The fourth proportional to 8,322.62, 12,484.22 and 3,640.24 is: 5,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.62 : 12,484.22 = 3,640.24 : x
  2. Step 2: Convert to fraction form
    8,322.62/12,484.22 = 3,640.24/x
  3. Step 3: Cross multiply
    8,322.62x = 12,484.22 × 3,640.24
  4. Step 4: Simplify right side
    8,322.62x = 45,445,507.60
  5. Step 5: Solve for x
    x = 45,445,507.60/8,322.62
  6. Step 6: Final answer
    x = 5,460.48

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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.