Home / 15,479.92-21,363.62-8,766.73

Finding the Fourth Proportional to 15,479.92, 21,363.62 and 8,766.73

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Solution

The fourth proportional to 15,479.92, 21,363.62 and 8,766.73 is: 12,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.92 : 21,363.62 = 8,766.73 : x
  2. Step 2: Convert to fraction form
    15,479.92/21,363.62 = 8,766.73/x
  3. Step 3: Cross multiply
    15,479.92x = 21,363.62 × 8,766.73
  4. Step 4: Simplify right side
    15,479.92x = 187,289,088.36
  5. Step 5: Solve for x
    x = 187,289,088.36/15,479.92
  6. Step 6: Final answer
    x = 12,098.84

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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.