Home / 12,150.33-18,219.19-5,570.85

Finding the Fourth Proportional to 12,150.33, 18,219.19 and 5,570.85

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Solution

The fourth proportional to 12,150.33, 18,219.19 and 5,570.85 is: 8,353.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.33 : 18,219.19 = 5,570.85 : x
  2. Step 2: Convert to fraction form
    12,150.33/18,219.19 = 5,570.85/x
  3. Step 3: Cross multiply
    12,150.33x = 18,219.19 × 5,570.85
  4. Step 4: Simplify right side
    12,150.33x = 101,496,374.61
  5. Step 5: Solve for x
    x = 101,496,374.61/12,150.33
  6. Step 6: Final answer
    x = 8,353.38

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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.