Home / 13,119.08-19,675.19-3,756.90

Finding the Fourth Proportional to 13,119.08, 19,675.19 and 3,756.90

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Solution

The fourth proportional to 13,119.08, 19,675.19 and 3,756.90 is: 5,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.08 : 19,675.19 = 3,756.90 : x
  2. Step 2: Convert to fraction form
    13,119.08/19,675.19 = 3,756.90/x
  3. Step 3: Cross multiply
    13,119.08x = 19,675.19 × 3,756.90
  4. Step 4: Simplify right side
    13,119.08x = 73,917,702.53
  5. Step 5: Solve for x
    x = 73,917,702.53/13,119.08
  6. Step 6: Final answer
    x = 5,634.37

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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.