Home / 6,820.47-10,211.66-3,689.26

Finding the Fourth Proportional to 6,820.47, 10,211.66 and 3,689.26

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Solution

The fourth proportional to 6,820.47, 10,211.66 and 3,689.26 is: 5,523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.47 : 10,211.66 = 3,689.26 : x
  2. Step 2: Convert to fraction form
    6,820.47/10,211.66 = 3,689.26/x
  3. Step 3: Cross multiply
    6,820.47x = 10,211.66 × 3,689.26
  4. Step 4: Simplify right side
    6,820.47x = 37,673,468.77
  5. Step 5: Solve for x
    x = 37,673,468.77/6,820.47
  6. Step 6: Final answer
    x = 5,523.59

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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.