Home / 11,101.56-16,630.38-8,331.36

Finding the Fourth Proportional to 11,101.56, 16,630.38 and 8,331.36

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Solution

The fourth proportional to 11,101.56, 16,630.38 and 8,331.36 is: 12,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.56 : 16,630.38 = 8,331.36 : x
  2. Step 2: Convert to fraction form
    11,101.56/16,630.38 = 8,331.36/x
  3. Step 3: Cross multiply
    11,101.56x = 16,630.38 × 8,331.36
  4. Step 4: Simplify right side
    11,101.56x = 138,553,682.72
  5. Step 5: Solve for x
    x = 138,553,682.72/11,101.56
  6. Step 6: Final answer
    x = 12,480.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.