Home / 11,781.50-16,246.41-7,801.16

Finding the Fourth Proportional to 11,781.50, 16,246.41 and 7,801.16

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Solution

The fourth proportional to 11,781.50, 16,246.41 and 7,801.16 is: 10,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.50 : 16,246.41 = 7,801.16 : x
  2. Step 2: Convert to fraction form
    11,781.50/16,246.41 = 7,801.16/x
  3. Step 3: Cross multiply
    11,781.50x = 16,246.41 × 7,801.16
  4. Step 4: Simplify right side
    11,781.50x = 126,740,822.72
  5. Step 5: Solve for x
    x = 126,740,822.72/11,781.50
  6. Step 6: Final answer
    x = 10,757.62

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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.