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Finding the Fourth Proportional to 7,479.43, 11,197.42 and 4,349.89

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Solution

The fourth proportional to 7,479.43, 11,197.42 and 4,349.89 is: 6,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.43 : 11,197.42 = 4,349.89 : x
  2. Step 2: Convert to fraction form
    7,479.43/11,197.42 = 4,349.89/x
  3. Step 3: Cross multiply
    7,479.43x = 11,197.42 × 4,349.89
  4. Step 4: Simplify right side
    7,479.43x = 48,707,545.28
  5. Step 5: Solve for x
    x = 48,707,545.28/7,479.43
  6. Step 6: Final answer
    x = 6,512.20

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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.