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Finding the Fourth Proportional to 8,940.45, 13,411.94 and 2,699.76

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Solution

The fourth proportional to 8,940.45, 13,411.94 and 2,699.76 is: 4,050.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.45 : 13,411.94 = 2,699.76 : x
  2. Step 2: Convert to fraction form
    8,940.45/13,411.94 = 2,699.76/x
  3. Step 3: Cross multiply
    8,940.45x = 13,411.94 × 2,699.76
  4. Step 4: Simplify right side
    8,940.45x = 36,208,980.49
  5. Step 5: Solve for x
    x = 36,208,980.49/8,940.45
  6. Step 6: Final answer
    x = 4,050.02

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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.