Home / 8,278.91-11,424.99-4,502.12

Finding the Fourth Proportional to 8,278.91, 11,424.99 and 4,502.12

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Solution

The fourth proportional to 8,278.91, 11,424.99 and 4,502.12 is: 6,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.91 : 11,424.99 = 4,502.12 : x
  2. Step 2: Convert to fraction form
    8,278.91/11,424.99 = 4,502.12/x
  3. Step 3: Cross multiply
    8,278.91x = 11,424.99 × 4,502.12
  4. Step 4: Simplify right side
    8,278.91x = 51,436,618.85
  5. Step 5: Solve for x
    x = 51,436,618.85/8,278.91
  6. Step 6: Final answer
    x = 6,212.97

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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.