Home / 6,721.47-9,274.27-3,926.43

Finding the Fourth Proportional to 6,721.47, 9,274.27 and 3,926.43

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Solution

The fourth proportional to 6,721.47, 9,274.27 and 3,926.43 is: 5,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.47 : 9,274.27 = 3,926.43 : x
  2. Step 2: Convert to fraction form
    6,721.47/9,274.27 = 3,926.43/x
  3. Step 3: Cross multiply
    6,721.47x = 9,274.27 × 3,926.43
  4. Step 4: Simplify right side
    6,721.47x = 36,414,771.96
  5. Step 5: Solve for x
    x = 36,414,771.96/6,721.47
  6. Step 6: Final answer
    x = 5,417.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.