Home / 13,949.74-21,020.57-11,538.82

Finding the Fourth Proportional to 13,949.74, 21,020.57 and 11,538.82

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Solution

The fourth proportional to 13,949.74, 21,020.57 and 11,538.82 is: 17,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.74 : 21,020.57 = 11,538.82 : x
  2. Step 2: Convert to fraction form
    13,949.74/21,020.57 = 11,538.82/x
  3. Step 3: Cross multiply
    13,949.74x = 21,020.57 × 11,538.82
  4. Step 4: Simplify right side
    13,949.74x = 242,552,573.53
  5. Step 5: Solve for x
    x = 242,552,573.53/13,949.74
  6. Step 6: Final answer
    x = 17,387.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.