Home / 7,415.28-11,124.54-2,221.56

Finding the Fourth Proportional to 7,415.28, 11,124.54 and 2,221.56

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Solution

The fourth proportional to 7,415.28, 11,124.54 and 2,221.56 is: 3,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.28 : 11,124.54 = 2,221.56 : x
  2. Step 2: Convert to fraction form
    7,415.28/11,124.54 = 2,221.56/x
  3. Step 3: Cross multiply
    7,415.28x = 11,124.54 × 2,221.56
  4. Step 4: Simplify right side
    7,415.28x = 24,713,833.08
  5. Step 5: Solve for x
    x = 24,713,833.08/7,415.28
  6. Step 6: Final answer
    x = 3,332.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.