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Finding the Fourth Proportional to 18,936.96, 26,143.04 and 14,678.46

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Solution

The fourth proportional to 18,936.96, 26,143.04 and 14,678.46 is: 20,264.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.96 : 26,143.04 = 14,678.46 : x
  2. Step 2: Convert to fraction form
    18,936.96/26,143.04 = 14,678.46/x
  3. Step 3: Cross multiply
    18,936.96x = 26,143.04 × 14,678.46
  4. Step 4: Simplify right side
    18,936.96x = 383,739,603.61
  5. Step 5: Solve for x
    x = 383,739,603.61/18,936.96
  6. Step 6: Final answer
    x = 20,264.06

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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.