Home / 11,580.12-17,372.10-5,424.12

Finding the Fourth Proportional to 11,580.12, 17,372.10 and 5,424.12

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Solution

The fourth proportional to 11,580.12, 17,372.10 and 5,424.12 is: 8,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.12 : 17,372.10 = 5,424.12 : x
  2. Step 2: Convert to fraction form
    11,580.12/17,372.10 = 5,424.12/x
  3. Step 3: Cross multiply
    11,580.12x = 17,372.10 × 5,424.12
  4. Step 4: Simplify right side
    11,580.12x = 94,228,355.05
  5. Step 5: Solve for x
    x = 94,228,355.05/11,580.12
  6. Step 6: Final answer
    x = 8,137.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.