Home / 6,519.75-9,755.40-3,888.69

Finding the Fourth Proportional to 6,519.75, 9,755.40 and 3,888.69

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Solution

The fourth proportional to 6,519.75, 9,755.40 and 3,888.69 is: 5,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.75 : 9,755.40 = 3,888.69 : x
  2. Step 2: Convert to fraction form
    6,519.75/9,755.40 = 3,888.69/x
  3. Step 3: Cross multiply
    6,519.75x = 9,755.40 × 3,888.69
  4. Step 4: Simplify right side
    6,519.75x = 37,935,726.43
  5. Step 5: Solve for x
    x = 37,935,726.43/6,519.75
  6. Step 6: Final answer
    x = 5,818.59

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1.5x scale

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.