Home / 12,814.74-19,197.18-8,418.84

Finding the Fourth Proportional to 12,814.74, 19,197.18 and 8,418.84

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Solution

The fourth proportional to 12,814.74, 19,197.18 and 8,418.84 is: 12,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.74 : 19,197.18 = 8,418.84 : x
  2. Step 2: Convert to fraction form
    12,814.74/19,197.18 = 8,418.84/x
  3. Step 3: Cross multiply
    12,814.74x = 19,197.18 × 8,418.84
  4. Step 4: Simplify right side
    12,814.74x = 161,617,986.87
  5. Step 5: Solve for x
    x = 161,617,986.87/12,814.74
  6. Step 6: Final answer
    x = 12,611.88

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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.