Home / 13,491.72-20,230.56-5,169.24

Finding the Fourth Proportional to 13,491.72, 20,230.56 and 5,169.24

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Solution

The fourth proportional to 13,491.72, 20,230.56 and 5,169.24 is: 7,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.72 : 20,230.56 = 5,169.24 : x
  2. Step 2: Convert to fraction form
    13,491.72/20,230.56 = 5,169.24/x
  3. Step 3: Cross multiply
    13,491.72x = 20,230.56 × 5,169.24
  4. Step 4: Simplify right side
    13,491.72x = 104,576,619.97
  5. Step 5: Solve for x
    x = 104,576,619.97/13,491.72
  6. Step 6: Final answer
    x = 7,751.17

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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.