Home / 12,219.60-18,327.08-3,454.46

Finding the Fourth Proportional to 12,219.60, 18,327.08 and 3,454.46

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Solution

The fourth proportional to 12,219.60, 18,327.08 and 3,454.46 is: 5,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.60 : 18,327.08 = 3,454.46 : x
  2. Step 2: Convert to fraction form
    12,219.60/18,327.08 = 3,454.46/x
  3. Step 3: Cross multiply
    12,219.60x = 18,327.08 × 3,454.46
  4. Step 4: Simplify right side
    12,219.60x = 63,310,164.78
  5. Step 5: Solve for x
    x = 63,310,164.78/12,219.60
  6. Step 6: Final answer
    x = 5,181.03

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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.