Home / 19,418.34-26,786.39-11,655.17

Finding the Fourth Proportional to 19,418.34, 26,786.39 and 11,655.17

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Solution

The fourth proportional to 19,418.34, 26,786.39 and 11,655.17 is: 16,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.34 : 26,786.39 = 11,655.17 : x
  2. Step 2: Convert to fraction form
    19,418.34/26,786.39 = 11,655.17/x
  3. Step 3: Cross multiply
    19,418.34x = 26,786.39 × 11,655.17
  4. Step 4: Simplify right side
    19,418.34x = 312,199,736.93
  5. Step 5: Solve for x
    x = 312,199,736.93/19,418.34
  6. Step 6: Final answer
    x = 16,077.57

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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.