Home / 11,890.68-17,818.74-6,669.96

Finding the Fourth Proportional to 11,890.68, 17,818.74 and 6,669.96

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Solution

The fourth proportional to 11,890.68, 17,818.74 and 6,669.96 is: 9,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.68 : 17,818.74 = 6,669.96 : x
  2. Step 2: Convert to fraction form
    11,890.68/17,818.74 = 6,669.96/x
  3. Step 3: Cross multiply
    11,890.68x = 17,818.74 × 6,669.96
  4. Step 4: Simplify right side
    11,890.68x = 118,850,283.05
  5. Step 5: Solve for x
    x = 118,850,283.05/11,890.68
  6. Step 6: Final answer
    x = 9,995.25

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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.