Home / 12,153.03-18,229.55-3,388.02

Finding the Fourth Proportional to 12,153.03, 18,229.55 and 3,388.02

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Solution

The fourth proportional to 12,153.03, 18,229.55 and 3,388.02 is: 5,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.03 : 18,229.55 = 3,388.02 : x
  2. Step 2: Convert to fraction form
    12,153.03/18,229.55 = 3,388.02/x
  3. Step 3: Cross multiply
    12,153.03x = 18,229.55 × 3,388.02
  4. Step 4: Simplify right side
    12,153.03x = 61,762,079.99
  5. Step 5: Solve for x
    x = 61,762,079.99/12,153.03
  6. Step 6: Final answer
    x = 5,082.03

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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.