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Finding the Fourth Proportional to 11,787.17, 16,266.03 and 6,409.49

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Solution

The fourth proportional to 11,787.17, 16,266.03 and 6,409.49 is: 8,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.17 : 16,266.03 = 6,409.49 : x
  2. Step 2: Convert to fraction form
    11,787.17/16,266.03 = 6,409.49/x
  3. Step 3: Cross multiply
    11,787.17x = 16,266.03 × 6,409.49
  4. Step 4: Simplify right side
    11,787.17x = 104,256,956.62
  5. Step 5: Solve for x
    x = 104,256,956.62/11,787.17
  6. Step 6: Final answer
    x = 8,844.95

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1.5x scale

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.