Home / 12,777.92-19,169.76-9,081.44

Finding the Fourth Proportional to 12,777.92, 19,169.76 and 9,081.44

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Solution

The fourth proportional to 12,777.92, 19,169.76 and 9,081.44 is: 13,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.92 : 19,169.76 = 9,081.44 : x
  2. Step 2: Convert to fraction form
    12,777.92/19,169.76 = 9,081.44/x
  3. Step 3: Cross multiply
    12,777.92x = 19,169.76 × 9,081.44
  4. Step 4: Simplify right side
    12,777.92x = 174,089,025.25
  5. Step 5: Solve for x
    x = 174,089,025.25/12,777.92
  6. Step 6: Final answer
    x = 13,624.21

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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.