Home / 8,330.61-12,497.55-3,945.69

Finding the Fourth Proportional to 8,330.61, 12,497.55 and 3,945.69

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Solution

The fourth proportional to 8,330.61, 12,497.55 and 3,945.69 is: 5,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.61 : 12,497.55 = 3,945.69 : x
  2. Step 2: Convert to fraction form
    8,330.61/12,497.55 = 3,945.69/x
  3. Step 3: Cross multiply
    8,330.61x = 12,497.55 × 3,945.69
  4. Step 4: Simplify right side
    8,330.61x = 49,311,458.06
  5. Step 5: Solve for x
    x = 49,311,458.06/8,330.61
  6. Step 6: Final answer
    x = 5,919.31

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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.