Home / 7,545.86-11,321.88-3,384.79

Finding the Fourth Proportional to 7,545.86, 11,321.88 and 3,384.79

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Solution

The fourth proportional to 7,545.86, 11,321.88 and 3,384.79 is: 5,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.86 : 11,321.88 = 3,384.79 : x
  2. Step 2: Convert to fraction form
    7,545.86/11,321.88 = 3,384.79/x
  3. Step 3: Cross multiply
    7,545.86x = 11,321.88 × 3,384.79
  4. Step 4: Simplify right side
    7,545.86x = 38,322,145.21
  5. Step 5: Solve for x
    x = 38,322,145.21/7,545.86
  6. Step 6: Final answer
    x = 5,078.57

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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.