Home / 12,218.39-18,327.26-3,898.91

Finding the Fourth Proportional to 12,218.39, 18,327.26 and 3,898.91

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Solution

The fourth proportional to 12,218.39, 18,327.26 and 3,898.91 is: 5,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.39 : 18,327.26 = 3,898.91 : x
  2. Step 2: Convert to fraction form
    12,218.39/18,327.26 = 3,898.91/x
  3. Step 3: Cross multiply
    12,218.39x = 18,327.26 × 3,898.91
  4. Step 4: Simplify right side
    12,218.39x = 71,456,392.85
  5. Step 5: Solve for x
    x = 71,456,392.85/12,218.39
  6. Step 6: Final answer
    x = 5,848.27

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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.