Home / 7,218.25-9,961.65-4,233.76

Finding the Fourth Proportional to 7,218.25, 9,961.65 and 4,233.76

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Solution

The fourth proportional to 7,218.25, 9,961.65 and 4,233.76 is: 5,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.25 : 9,961.65 = 4,233.76 : x
  2. Step 2: Convert to fraction form
    7,218.25/9,961.65 = 4,233.76/x
  3. Step 3: Cross multiply
    7,218.25x = 9,961.65 × 4,233.76
  4. Step 4: Simplify right side
    7,218.25x = 42,175,235.30
  5. Step 5: Solve for x
    x = 42,175,235.30/7,218.25
  6. Step 6: Final answer
    x = 5,842.86

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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.