Home / 12,219.30-18,333.12-5,199.04

Finding the Fourth Proportional to 12,219.30, 18,333.12 and 5,199.04

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Solution

The fourth proportional to 12,219.30, 18,333.12 and 5,199.04 is: 7,800.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.30 : 18,333.12 = 5,199.04 : x
  2. Step 2: Convert to fraction form
    12,219.30/18,333.12 = 5,199.04/x
  3. Step 3: Cross multiply
    12,219.30x = 18,333.12 × 5,199.04
  4. Step 4: Simplify right side
    12,219.30x = 95,314,624.20
  5. Step 5: Solve for x
    x = 95,314,624.20/12,219.30
  6. Step 6: Final answer
    x = 7,800.33

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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.