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Finding the Fourth Proportional to 9,280.56, 13,922.68 and 8,351.08

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Solution

The fourth proportional to 9,280.56, 13,922.68 and 8,351.08 is: 12,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280.56 : 13,922.68 = 8,351.08 : x
  2. Step 2: Convert to fraction form
    9,280.56/13,922.68 = 8,351.08/x
  3. Step 3: Cross multiply
    9,280.56x = 13,922.68 × 8,351.08
  4. Step 4: Simplify right side
    9,280.56x = 116,269,414.49
  5. Step 5: Solve for x
    x = 116,269,414.49/9,280.56
  6. Step 6: Final answer
    x = 12,528.28

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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.