Home / 16,778.12-25,169.16-5,091.44

Finding the Fourth Proportional to 16,778.12, 25,169.16 and 5,091.44

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Solution

The fourth proportional to 16,778.12, 25,169.16 and 5,091.44 is: 7,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.12 : 25,169.16 = 5,091.44 : x
  2. Step 2: Convert to fraction form
    16,778.12/25,169.16 = 5,091.44/x
  3. Step 3: Cross multiply
    16,778.12x = 25,169.16 × 5,091.44
  4. Step 4: Simplify right side
    16,778.12x = 128,147,267.99
  5. Step 5: Solve for x
    x = 128,147,267.99/16,778.12
  6. Step 6: Final answer
    x = 7,637.76

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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.