Home / 17,765.80-26,630.34-6,664.66

Finding the Fourth Proportional to 17,765.80, 26,630.34 and 6,664.66

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Solution

The fourth proportional to 17,765.80, 26,630.34 and 6,664.66 is: 9,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.80 : 26,630.34 = 6,664.66 : x
  2. Step 2: Convert to fraction form
    17,765.80/26,630.34 = 6,664.66/x
  3. Step 3: Cross multiply
    17,765.80x = 26,630.34 × 6,664.66
  4. Step 4: Simplify right side
    17,765.80x = 177,482,161.78
  5. Step 5: Solve for x
    x = 177,482,161.78/17,765.80
  6. Step 6: Final answer
    x = 9,990.10

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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.