Home / 7,221.91-9,963.66-4,237.06

Finding the Fourth Proportional to 7,221.91, 9,963.66 and 4,237.06

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Solution

The fourth proportional to 7,221.91, 9,963.66 and 4,237.06 is: 5,845.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.91 : 9,963.66 = 4,237.06 : x
  2. Step 2: Convert to fraction form
    7,221.91/9,963.66 = 4,237.06/x
  3. Step 3: Cross multiply
    7,221.91x = 9,963.66 × 4,237.06
  4. Step 4: Simplify right side
    7,221.91x = 42,216,625.24
  5. Step 5: Solve for x
    x = 42,216,625.24/7,221.91
  6. Step 6: Final answer
    x = 5,845.63

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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.