Home / 7,212.09-9,952.20-4,227.42

Finding the Fourth Proportional to 7,212.09, 9,952.20 and 4,227.42

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Solution

The fourth proportional to 7,212.09, 9,952.20 and 4,227.42 is: 5,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.09 : 9,952.20 = 4,227.42 : x
  2. Step 2: Convert to fraction form
    7,212.09/9,952.20 = 4,227.42/x
  3. Step 3: Cross multiply
    7,212.09x = 9,952.20 × 4,227.42
  4. Step 4: Simplify right side
    7,212.09x = 42,072,129.32
  5. Step 5: Solve for x
    x = 42,072,129.32/7,212.09
  6. Step 6: Final answer
    x = 5,833.56

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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.