Home / 12,218.34-18,327.52-8,028.06

Finding the Fourth Proportional to 12,218.34, 18,327.52 and 8,028.06

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Solution

The fourth proportional to 12,218.34, 18,327.52 and 8,028.06 is: 12,042.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.34 : 18,327.52 = 8,028.06 : x
  2. Step 2: Convert to fraction form
    12,218.34/18,327.52 = 8,028.06/x
  3. Step 3: Cross multiply
    12,218.34x = 18,327.52 × 8,028.06
  4. Step 4: Simplify right side
    12,218.34x = 147,134,429.45
  5. Step 5: Solve for x
    x = 147,134,429.45/12,218.34
  6. Step 6: Final answer
    x = 12,042.09

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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.