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Finding the Fourth Proportional to 18,161.58, 25,061.64 and 10,205.14

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Solution

The fourth proportional to 18,161.58, 25,061.64 and 10,205.14 is: 14,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.58 : 25,061.64 = 10,205.14 : x
  2. Step 2: Convert to fraction form
    18,161.58/25,061.64 = 10,205.14/x
  3. Step 3: Cross multiply
    18,161.58x = 25,061.64 × 10,205.14
  4. Step 4: Simplify right side
    18,161.58x = 255,757,544.83
  5. Step 5: Solve for x
    x = 255,757,544.83/18,161.58
  6. Step 6: Final answer
    x = 14,082.34

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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.