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Finding the Fourth Proportional to 8,880.98, 13,318 and 3,331.30

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Solution

The fourth proportional to 8,880.98, 13,318 and 3,331.30 is: 4,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.98 : 13,318 = 3,331.30 : x
  2. Step 2: Convert to fraction form
    8,880.98/13,318 = 3,331.30/x
  3. Step 3: Cross multiply
    8,880.98x = 13,318 × 3,331.30
  4. Step 4: Simplify right side
    8,880.98x = 44,366,253.40
  5. Step 5: Solve for x
    x = 44,366,253.40/8,880.98
  6. Step 6: Final answer
    x = 4,995.65

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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.