Home / 11,621.19-17,434.52-3,830

Finding the Fourth Proportional to 11,621.19, 17,434.52 and 3,830

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Solution

The fourth proportional to 11,621.19, 17,434.52 and 3,830 is: 5,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.19 : 17,434.52 = 3,830 : x
  2. Step 2: Convert to fraction form
    11,621.19/17,434.52 = 3,830/x
  3. Step 3: Cross multiply
    11,621.19x = 17,434.52 × 3,830
  4. Step 4: Simplify right side
    11,621.19x = 66,774,211.60
  5. Step 5: Solve for x
    x = 66,774,211.60/11,621.19
  6. Step 6: Final answer
    x = 5,745.90

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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.