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Finding the Fourth Proportional to 8,994, 12,411.84 and 5,268

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Solution

The fourth proportional to 8,994, 12,411.84 and 5,268 is: 7,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994 : 12,411.84 = 5,268 : x
  2. Step 2: Convert to fraction form
    8,994/12,411.84 = 5,268/x
  3. Step 3: Cross multiply
    8,994x = 12,411.84 × 5,268
  4. Step 4: Simplify right side
    8,994x = 65,385,573.12
  5. Step 5: Solve for x
    x = 65,385,573.12/8,994
  6. Step 6: Final answer
    x = 7,269.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.