Home / 7,212.49-9,953.25-4,227.73

Finding the Fourth Proportional to 7,212.49, 9,953.25 and 4,227.73

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Solution

The fourth proportional to 7,212.49, 9,953.25 and 4,227.73 is: 5,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.49 : 9,953.25 = 4,227.73 : x
  2. Step 2: Convert to fraction form
    7,212.49/9,953.25 = 4,227.73/x
  3. Step 3: Cross multiply
    7,212.49x = 9,953.25 × 4,227.73
  4. Step 4: Simplify right side
    7,212.49x = 42,079,612.89
  5. Step 5: Solve for x
    x = 42,079,612.89/7,212.49
  6. Step 6: Final answer
    x = 5,834.27

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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.