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Finding the Fourth Proportional to 8,363.95, 12,534.98 and 3,427.81

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Solution

The fourth proportional to 8,363.95, 12,534.98 and 3,427.81 is: 5,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.95 : 12,534.98 = 3,427.81 : x
  2. Step 2: Convert to fraction form
    8,363.95/12,534.98 = 3,427.81/x
  3. Step 3: Cross multiply
    8,363.95x = 12,534.98 × 3,427.81
  4. Step 4: Simplify right side
    8,363.95x = 42,967,507.03
  5. Step 5: Solve for x
    x = 42,967,507.03/8,363.95
  6. Step 6: Final answer
    x = 5,137.23

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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.