Home / 18,940.84-26,138.22-10,442.68

Finding the Fourth Proportional to 18,940.84, 26,138.22 and 10,442.68

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Solution

The fourth proportional to 18,940.84, 26,138.22 and 10,442.68 is: 14,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.84 : 26,138.22 = 10,442.68 : x
  2. Step 2: Convert to fraction form
    18,940.84/26,138.22 = 10,442.68/x
  3. Step 3: Cross multiply
    18,940.84x = 26,138.22 × 10,442.68
  4. Step 4: Simplify right side
    18,940.84x = 272,953,067.23
  5. Step 5: Solve for x
    x = 272,953,067.23/18,940.84
  6. Step 6: Final answer
    x = 14,410.82

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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.