Home / 13,491.22-20,239.77-5,171.26

Finding the Fourth Proportional to 13,491.22, 20,239.77 and 5,171.26

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Solution

The fourth proportional to 13,491.22, 20,239.77 and 5,171.26 is: 7,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.22 : 20,239.77 = 5,171.26 : x
  2. Step 2: Convert to fraction form
    13,491.22/20,239.77 = 5,171.26/x
  3. Step 3: Cross multiply
    13,491.22x = 20,239.77 × 5,171.26
  4. Step 4: Simplify right side
    13,491.22x = 104,665,113.01
  5. Step 5: Solve for x
    x = 104,665,113.01/13,491.22
  6. Step 6: Final answer
    x = 7,758.02

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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.