Home / 7,218.09-9,960.31-4,233.38

Finding the Fourth Proportional to 7,218.09, 9,960.31 and 4,233.38

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Solution

The fourth proportional to 7,218.09, 9,960.31 and 4,233.38 is: 5,841.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.09 : 9,960.31 = 4,233.38 : x
  2. Step 2: Convert to fraction form
    7,218.09/9,960.31 = 4,233.38/x
  3. Step 3: Cross multiply
    7,218.09x = 9,960.31 × 4,233.38
  4. Step 4: Simplify right side
    7,218.09x = 42,165,777.15
  5. Step 5: Solve for x
    x = 42,165,777.15/7,218.09
  6. Step 6: Final answer
    x = 5,841.68

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Half scale
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Double scale
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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.