Home / 11,929.92-16,444.14-8,100.36

Finding the Fourth Proportional to 11,929.92, 16,444.14 and 8,100.36

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Solution

The fourth proportional to 11,929.92, 16,444.14 and 8,100.36 is: 11,165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.92 : 16,444.14 = 8,100.36 : x
  2. Step 2: Convert to fraction form
    11,929.92/16,444.14 = 8,100.36/x
  3. Step 3: Cross multiply
    11,929.92x = 16,444.14 × 8,100.36
  4. Step 4: Simplify right side
    11,929.92x = 133,203,453.89
  5. Step 5: Solve for x
    x = 133,203,453.89/11,929.92
  6. Step 6: Final answer
    x = 11,165.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.