Home / 12,219.80-18,333.87-5,199.54

Finding the Fourth Proportional to 12,219.80, 18,333.87 and 5,199.54

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Solution

The fourth proportional to 12,219.80, 18,333.87 and 5,199.54 is: 7,801.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.80 : 18,333.87 = 5,199.54 : x
  2. Step 2: Convert to fraction form
    12,219.80/18,333.87 = 5,199.54/x
  3. Step 3: Cross multiply
    12,219.80x = 18,333.87 × 5,199.54
  4. Step 4: Simplify right side
    12,219.80x = 95,327,690.42
  5. Step 5: Solve for x
    x = 95,327,690.42/12,219.80
  6. Step 6: Final answer
    x = 7,801.08

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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.