Home / 18,953.07-26,147.12-11,397.39

Finding the Fourth Proportional to 18,953.07, 26,147.12 and 11,397.39

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Solution

The fourth proportional to 18,953.07, 26,147.12 and 11,397.39 is: 15,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.07 : 26,147.12 = 11,397.39 : x
  2. Step 2: Convert to fraction form
    18,953.07/26,147.12 = 11,397.39/x
  3. Step 3: Cross multiply
    18,953.07x = 26,147.12 × 11,397.39
  4. Step 4: Simplify right side
    18,953.07x = 298,008,867.03
  5. Step 5: Solve for x
    x = 298,008,867.03/18,953.07
  6. Step 6: Final answer
    x = 15,723.51

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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.