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Finding the Fourth Proportional to 9,354.28, 12,891.09 and 6,697.08

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Solution

The fourth proportional to 9,354.28, 12,891.09 and 6,697.08 is: 9,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.28 : 12,891.09 = 6,697.08 : x
  2. Step 2: Convert to fraction form
    9,354.28/12,891.09 = 6,697.08/x
  3. Step 3: Cross multiply
    9,354.28x = 12,891.09 × 6,697.08
  4. Step 4: Simplify right side
    9,354.28x = 86,332,563.08
  5. Step 5: Solve for x
    x = 86,332,563.08/9,354.28
  6. Step 6: Final answer
    x = 9,229.20

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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.