Home / 11,778.20-16,268.34-8,807.25

Finding the Fourth Proportional to 11,778.20, 16,268.34 and 8,807.25

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Solution

The fourth proportional to 11,778.20, 16,268.34 and 8,807.25 is: 12,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.20 : 16,268.34 = 8,807.25 : x
  2. Step 2: Convert to fraction form
    11,778.20/16,268.34 = 8,807.25/x
  3. Step 3: Cross multiply
    11,778.20x = 16,268.34 × 8,807.25
  4. Step 4: Simplify right side
    11,778.20x = 143,279,337.47
  5. Step 5: Solve for x
    x = 143,279,337.47/11,778.20
  6. Step 6: Final answer
    x = 12,164.79

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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.