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Finding the Fourth Proportional to 8,365.95, 12,549.80 and 3,102.37

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Solution

The fourth proportional to 8,365.95, 12,549.80 and 3,102.37 is: 4,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.95 : 12,549.80 = 3,102.37 : x
  2. Step 2: Convert to fraction form
    8,365.95/12,549.80 = 3,102.37/x
  3. Step 3: Cross multiply
    8,365.95x = 12,549.80 × 3,102.37
  4. Step 4: Simplify right side
    8,365.95x = 38,934,099.41
  5. Step 5: Solve for x
    x = 38,934,099.41/8,365.95
  6. Step 6: Final answer
    x = 4,653.88

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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.