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Finding the Fourth Proportional to 10,889.99, 16,345.01 and 6,738.11

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Solution

The fourth proportional to 10,889.99, 16,345.01 and 6,738.11 is: 10,113.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.99 : 16,345.01 = 6,738.11 : x
  2. Step 2: Convert to fraction form
    10,889.99/16,345.01 = 6,738.11/x
  3. Step 3: Cross multiply
    10,889.99x = 16,345.01 × 6,738.11
  4. Step 4: Simplify right side
    10,889.99x = 110,134,441.64
  5. Step 5: Solve for x
    x = 110,134,441.64/10,889.99
  6. Step 6: Final answer
    x = 10,113.36

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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.