Home / 11,964.33-16,502.20-8,778.60

Finding the Fourth Proportional to 11,964.33, 16,502.20 and 8,778.60

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Solution

The fourth proportional to 11,964.33, 16,502.20 and 8,778.60 is: 12,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.33 : 16,502.20 = 8,778.60 : x
  2. Step 2: Convert to fraction form
    11,964.33/16,502.20 = 8,778.60/x
  3. Step 3: Cross multiply
    11,964.33x = 16,502.20 × 8,778.60
  4. Step 4: Simplify right side
    11,964.33x = 144,866,190.97
  5. Step 5: Solve for x
    x = 144,866,190.97/11,964.33
  6. Step 6: Final answer
    x = 12,108.17

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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.