Home / 15,174.26-20,949.45-13,491.01

Finding the Fourth Proportional to 15,174.26, 20,949.45 and 13,491.01

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Solution

The fourth proportional to 15,174.26, 20,949.45 and 13,491.01 is: 18,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.26 : 20,949.45 = 13,491.01 : x
  2. Step 2: Convert to fraction form
    15,174.26/20,949.45 = 13,491.01/x
  3. Step 3: Cross multiply
    15,174.26x = 20,949.45 × 13,491.01
  4. Step 4: Simplify right side
    15,174.26x = 282,629,239.44
  5. Step 5: Solve for x
    x = 282,629,239.44/15,174.26
  6. Step 6: Final answer
    x = 18,625.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.