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Finding the Fourth Proportional to 9,211.30, 13,787.55 and 7,267.30

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Solution

The fourth proportional to 9,211.30, 13,787.55 and 7,267.30 is: 10,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.30 : 13,787.55 = 7,267.30 : x
  2. Step 2: Convert to fraction form
    9,211.30/13,787.55 = 7,267.30/x
  3. Step 3: Cross multiply
    9,211.30x = 13,787.55 × 7,267.30
  4. Step 4: Simplify right side
    9,211.30x = 100,198,262.12
  5. Step 5: Solve for x
    x = 100,198,262.12/9,211.30
  6. Step 6: Final answer
    x = 10,877.75

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1.5x scale

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.