Home / 11,917.92-17,875.80-4,126.32

Finding the Fourth Proportional to 11,917.92, 17,875.80 and 4,126.32

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Solution

The fourth proportional to 11,917.92, 17,875.80 and 4,126.32 is: 6,189.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.92 : 17,875.80 = 4,126.32 : x
  2. Step 2: Convert to fraction form
    11,917.92/17,875.80 = 4,126.32/x
  3. Step 3: Cross multiply
    11,917.92x = 17,875.80 × 4,126.32
  4. Step 4: Simplify right side
    11,917.92x = 73,761,271.06
  5. Step 5: Solve for x
    x = 73,761,271.06/11,917.92
  6. Step 6: Final answer
    x = 6,189.11

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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.