Home / 14,134.43-21,206.21-4,778.73

Finding the Fourth Proportional to 14,134.43, 21,206.21 and 4,778.73

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Solution

The fourth proportional to 14,134.43, 21,206.21 and 4,778.73 is: 7,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.43 : 21,206.21 = 4,778.73 : x
  2. Step 2: Convert to fraction form
    14,134.43/21,206.21 = 4,778.73/x
  3. Step 3: Cross multiply
    14,134.43x = 21,206.21 × 4,778.73
  4. Step 4: Simplify right side
    14,134.43x = 101,338,728.02
  5. Step 5: Solve for x
    x = 101,338,728.02/14,134.43
  6. Step 6: Final answer
    x = 7,169.64

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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.