Home / 12,135.24-18,202.98-3,370.20

Finding the Fourth Proportional to 12,135.24, 18,202.98 and 3,370.20

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Solution

The fourth proportional to 12,135.24, 18,202.98 and 3,370.20 is: 5,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.24 : 18,202.98 = 3,370.20 : x
  2. Step 2: Convert to fraction form
    12,135.24/18,202.98 = 3,370.20/x
  3. Step 3: Cross multiply
    12,135.24x = 18,202.98 × 3,370.20
  4. Step 4: Simplify right side
    12,135.24x = 61,347,683.20
  5. Step 5: Solve for x
    x = 61,347,683.20/12,135.24
  6. Step 6: Final answer
    x = 5,055.33

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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.