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Finding the Fourth Proportional to 18,932.21, 26,126.09 and 10,435.12

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Solution

The fourth proportional to 18,932.21, 26,126.09 and 10,435.12 is: 14,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.21 : 26,126.09 = 10,435.12 : x
  2. Step 2: Convert to fraction form
    18,932.21/26,126.09 = 10,435.12/x
  3. Step 3: Cross multiply
    18,932.21x = 26,126.09 × 10,435.12
  4. Step 4: Simplify right side
    18,932.21x = 272,628,753.65
  5. Step 5: Solve for x
    x = 272,628,753.65/18,932.21
  6. Step 6: Final answer
    x = 14,400.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.