Home / 15,626.58-21,542.22-11,142.56

Finding the Fourth Proportional to 15,626.58, 21,542.22 and 11,142.56

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Solution

The fourth proportional to 15,626.58, 21,542.22 and 11,142.56 is: 15,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.58 : 21,542.22 = 11,142.56 : x
  2. Step 2: Convert to fraction form
    15,626.58/21,542.22 = 11,142.56/x
  3. Step 3: Cross multiply
    15,626.58x = 21,542.22 × 11,142.56
  4. Step 4: Simplify right side
    15,626.58x = 240,035,371.17
  5. Step 5: Solve for x
    x = 240,035,371.17/15,626.58
  6. Step 6: Final answer
    x = 15,360.71

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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.