Home / 11,251.72-16,881.36-5,015.98

Finding the Fourth Proportional to 11,251.72, 16,881.36 and 5,015.98

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Solution

The fourth proportional to 11,251.72, 16,881.36 and 5,015.98 is: 7,525.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.72 : 16,881.36 = 5,015.98 : x
  2. Step 2: Convert to fraction form
    11,251.72/16,881.36 = 5,015.98/x
  3. Step 3: Cross multiply
    11,251.72x = 16,881.36 × 5,015.98
  4. Step 4: Simplify right side
    11,251.72x = 84,676,564.13
  5. Step 5: Solve for x
    x = 84,676,564.13/11,251.72
  6. Step 6: Final answer
    x = 7,525.66

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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.