Home / 18,911.13-26,100.81-10,954.14

Finding the Fourth Proportional to 18,911.13, 26,100.81 and 10,954.14

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Solution

The fourth proportional to 18,911.13, 26,100.81 and 10,954.14 is: 15,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.13 : 26,100.81 = 10,954.14 : x
  2. Step 2: Convert to fraction form
    18,911.13/26,100.81 = 10,954.14/x
  3. Step 3: Cross multiply
    18,911.13x = 26,100.81 × 10,954.14
  4. Step 4: Simplify right side
    18,911.13x = 285,911,926.85
  5. Step 5: Solve for x
    x = 285,911,926.85/18,911.13
  6. Step 6: Final answer
    x = 15,118.71

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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.