Home / 15,740.82-21,722.28-8,667.24

Finding the Fourth Proportional to 15,740.82, 21,722.28 and 8,667.24

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Solution

The fourth proportional to 15,740.82, 21,722.28 and 8,667.24 is: 11,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.82 : 21,722.28 = 8,667.24 : x
  2. Step 2: Convert to fraction form
    15,740.82/21,722.28 = 8,667.24/x
  3. Step 3: Cross multiply
    15,740.82x = 21,722.28 × 8,667.24
  4. Step 4: Simplify right side
    15,740.82x = 188,272,214.11
  5. Step 5: Solve for x
    x = 188,272,214.11/15,740.82
  6. Step 6: Final answer
    x = 11,960.76

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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.