Home / 11,129.10-16,688.70-3,336.36

Finding the Fourth Proportional to 11,129.10, 16,688.70 and 3,336.36

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Solution

The fourth proportional to 11,129.10, 16,688.70 and 3,336.36 is: 5,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.10 : 16,688.70 = 3,336.36 : x
  2. Step 2: Convert to fraction form
    11,129.10/16,688.70 = 3,336.36/x
  3. Step 3: Cross multiply
    11,129.10x = 16,688.70 × 3,336.36
  4. Step 4: Simplify right side
    11,129.10x = 55,679,511.13
  5. Step 5: Solve for x
    x = 55,679,511.13/11,129.10
  6. Step 6: Final answer
    x = 5,003.06

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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.