Home / 12,781.68-19,173.39-4,463.79

Finding the Fourth Proportional to 12,781.68, 19,173.39 and 4,463.79

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Solution

The fourth proportional to 12,781.68, 19,173.39 and 4,463.79 is: 6,695.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.68 : 19,173.39 = 4,463.79 : x
  2. Step 2: Convert to fraction form
    12,781.68/19,173.39 = 4,463.79/x
  3. Step 3: Cross multiply
    12,781.68x = 19,173.39 × 4,463.79
  4. Step 4: Simplify right side
    12,781.68x = 85,585,986.55
  5. Step 5: Solve for x
    x = 85,585,986.55/12,781.68
  6. Step 6: Final answer
    x = 6,695.99

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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.