Home / 11,802.78-16,287.21-6,766.61

Finding the Fourth Proportional to 11,802.78, 16,287.21 and 6,766.61

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Solution

The fourth proportional to 11,802.78, 16,287.21 and 6,766.61 is: 9,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,802.78 : 16,287.21 = 6,766.61 : x
  2. Step 2: Convert to fraction form
    11,802.78/16,287.21 = 6,766.61/x
  3. Step 3: Cross multiply
    11,802.78x = 16,287.21 × 6,766.61
  4. Step 4: Simplify right side
    11,802.78x = 110,209,116.62
  5. Step 5: Solve for x
    x = 110,209,116.62/11,802.78
  6. Step 6: Final answer
    x = 9,337.56

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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.