Home / 8,170.18-12,259.32-3,239.71

Finding the Fourth Proportional to 8,170.18, 12,259.32 and 3,239.71

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Solution

The fourth proportional to 8,170.18, 12,259.32 and 3,239.71 is: 4,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.18 : 12,259.32 = 3,239.71 : x
  2. Step 2: Convert to fraction form
    8,170.18/12,259.32 = 3,239.71/x
  3. Step 3: Cross multiply
    8,170.18x = 12,259.32 × 3,239.71
  4. Step 4: Simplify right side
    8,170.18x = 39,716,641.60
  5. Step 5: Solve for x
    x = 39,716,641.60/8,170.18
  6. Step 6: Final answer
    x = 4,861.17

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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.