Home / 11,191.84-16,787.72-5,347.08

Finding the Fourth Proportional to 11,191.84, 16,787.72 and 5,347.08

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Solution

The fourth proportional to 11,191.84, 16,787.72 and 5,347.08 is: 8,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.84 : 16,787.72 = 5,347.08 : x
  2. Step 2: Convert to fraction form
    11,191.84/16,787.72 = 5,347.08/x
  3. Step 3: Cross multiply
    11,191.84x = 16,787.72 × 5,347.08
  4. Step 4: Simplify right side
    11,191.84x = 89,765,295.23
  5. Step 5: Solve for x
    x = 89,765,295.23/11,191.84
  6. Step 6: Final answer
    x = 8,020.60

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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.