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Finding the Fourth Proportional to 8,328.70, 12,489.41 and 2,484.15

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Solution

The fourth proportional to 8,328.70, 12,489.41 and 2,484.15 is: 3,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.70 : 12,489.41 = 2,484.15 : x
  2. Step 2: Convert to fraction form
    8,328.70/12,489.41 = 2,484.15/x
  3. Step 3: Cross multiply
    8,328.70x = 12,489.41 × 2,484.15
  4. Step 4: Simplify right side
    8,328.70x = 31,025,492.98
  5. Step 5: Solve for x
    x = 31,025,492.98/8,328.70
  6. Step 6: Final answer
    x = 3,725.13

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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.