Home / 13,948.14-19,251.88-7,983.21

Finding the Fourth Proportional to 13,948.14, 19,251.88 and 7,983.21

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Solution

The fourth proportional to 13,948.14, 19,251.88 and 7,983.21 is: 11,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.14 : 19,251.88 = 7,983.21 : x
  2. Step 2: Convert to fraction form
    13,948.14/19,251.88 = 7,983.21/x
  3. Step 3: Cross multiply
    13,948.14x = 19,251.88 × 7,983.21
  4. Step 4: Simplify right side
    13,948.14x = 153,691,800.93
  5. Step 5: Solve for x
    x = 153,691,800.93/13,948.14
  6. Step 6: Final answer
    x = 11,018.80

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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.