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Finding the Fourth Proportional to 6,899.72, 9,522.85 and 4,066.92

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Solution

The fourth proportional to 6,899.72, 9,522.85 and 4,066.92 is: 5,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.72 : 9,522.85 = 4,066.92 : x
  2. Step 2: Convert to fraction form
    6,899.72/9,522.85 = 4,066.92/x
  3. Step 3: Cross multiply
    6,899.72x = 9,522.85 × 4,066.92
  4. Step 4: Simplify right side
    6,899.72x = 38,728,674.21
  5. Step 5: Solve for x
    x = 38,728,674.21/6,899.72
  6. Step 6: Final answer
    x = 5,613.08

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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.