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Finding the Fourth Proportional to 18,913.26, 26,100.06 and 10,956.22

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Solution

The fourth proportional to 18,913.26, 26,100.06 and 10,956.22 is: 15,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.26 : 26,100.06 = 10,956.22 : x
  2. Step 2: Convert to fraction form
    18,913.26/26,100.06 = 10,956.22/x
  3. Step 3: Cross multiply
    18,913.26x = 26,100.06 × 10,956.22
  4. Step 4: Simplify right side
    18,913.26x = 285,958,122.77
  5. Step 5: Solve for x
    x = 285,958,122.77/18,913.26
  6. Step 6: Final answer
    x = 15,119.45

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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.