Home / 12,214.12-18,319.52-3,449.74

Finding the Fourth Proportional to 12,214.12, 18,319.52 and 3,449.74

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Solution

The fourth proportional to 12,214.12, 18,319.52 and 3,449.74 is: 5,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.12 : 18,319.52 = 3,449.74 : x
  2. Step 2: Convert to fraction form
    12,214.12/18,319.52 = 3,449.74/x
  3. Step 3: Cross multiply
    12,214.12x = 18,319.52 × 3,449.74
  4. Step 4: Simplify right side
    12,214.12x = 63,197,580.92
  5. Step 5: Solve for x
    x = 63,197,580.92/12,214.12
  6. Step 6: Final answer
    x = 5,174.14

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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.