Home / 18,953.88-26,153.26-11,398.39

Finding the Fourth Proportional to 18,953.88, 26,153.26 and 11,398.39

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Solution

The fourth proportional to 18,953.88, 26,153.26 and 11,398.39 is: 15,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.88 : 26,153.26 = 11,398.39 : x
  2. Step 2: Convert to fraction form
    18,953.88/26,153.26 = 11,398.39/x
  3. Step 3: Cross multiply
    18,953.88x = 26,153.26 × 11,398.39
  4. Step 4: Simplify right side
    18,953.88x = 298,105,057.25
  5. Step 5: Solve for x
    x = 298,105,057.25/18,953.88
  6. Step 6: Final answer
    x = 15,727.92

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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.