Home / 13,169.28-19,760.76-5,778.95

Finding the Fourth Proportional to 13,169.28, 19,760.76 and 5,778.95

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Solution

The fourth proportional to 13,169.28, 19,760.76 and 5,778.95 is: 8,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.28 : 19,760.76 = 5,778.95 : x
  2. Step 2: Convert to fraction form
    13,169.28/19,760.76 = 5,778.95/x
  3. Step 3: Cross multiply
    13,169.28x = 19,760.76 × 5,778.95
  4. Step 4: Simplify right side
    13,169.28x = 114,196,345.20
  5. Step 5: Solve for x
    x = 114,196,345.20/13,169.28
  6. Step 6: Final answer
    x = 8,671.42

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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.