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Finding the Fourth Proportional to 8,371.62, 12,561.12 and 3,442.32

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Solution

The fourth proportional to 8,371.62, 12,561.12 and 3,442.32 is: 5,165.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.62 : 12,561.12 = 3,442.32 : x
  2. Step 2: Convert to fraction form
    8,371.62/12,561.12 = 3,442.32/x
  3. Step 3: Cross multiply
    8,371.62x = 12,561.12 × 3,442.32
  4. Step 4: Simplify right side
    8,371.62x = 43,239,394.60
  5. Step 5: Solve for x
    x = 43,239,394.60/8,371.62
  6. Step 6: Final answer
    x = 5,165.00

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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.