Home / 13,118.87-19,672.49-3,756.75

Finding the Fourth Proportional to 13,118.87, 19,672.49 and 3,756.75

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Solution

The fourth proportional to 13,118.87, 19,672.49 and 3,756.75 is: 5,633.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.87 : 19,672.49 = 3,756.75 : x
  2. Step 2: Convert to fraction form
    13,118.87/19,672.49 = 3,756.75/x
  3. Step 3: Cross multiply
    13,118.87x = 19,672.49 × 3,756.75
  4. Step 4: Simplify right side
    13,118.87x = 73,904,636.20
  5. Step 5: Solve for x
    x = 73,904,636.20/13,118.87
  6. Step 6: Final answer
    x = 5,633.46

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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.