Home / 12,212.35-18,319.73-3,447.34

Finding the Fourth Proportional to 12,212.35, 18,319.73 and 3,447.34

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Solution

The fourth proportional to 12,212.35, 18,319.73 and 3,447.34 is: 5,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.35 : 18,319.73 = 3,447.34 : x
  2. Step 2: Convert to fraction form
    12,212.35/18,319.73 = 3,447.34/x
  3. Step 3: Cross multiply
    12,212.35x = 18,319.73 × 3,447.34
  4. Step 4: Simplify right side
    12,212.35x = 63,154,338.02
  5. Step 5: Solve for x
    x = 63,154,338.02/12,212.35
  6. Step 6: Final answer
    x = 5,171.35

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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.