Home / 19,338.93-26,687.21-11,381.63

Finding the Fourth Proportional to 19,338.93, 26,687.21 and 11,381.63

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Solution

The fourth proportional to 19,338.93, 26,687.21 and 11,381.63 is: 15,706.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.93 : 26,687.21 = 11,381.63 : x
  2. Step 2: Convert to fraction form
    19,338.93/26,687.21 = 11,381.63/x
  3. Step 3: Cross multiply
    19,338.93x = 26,687.21 × 11,381.63
  4. Step 4: Simplify right side
    19,338.93x = 303,743,759.61
  5. Step 5: Solve for x
    x = 303,743,759.61/19,338.93
  6. Step 6: Final answer
    x = 15,706.34

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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.