Home / 8,140.35-12,194.75-4,619.71

Finding the Fourth Proportional to 8,140.35, 12,194.75 and 4,619.71

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Solution

The fourth proportional to 8,140.35, 12,194.75 and 4,619.71 is: 6,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.35 : 12,194.75 = 4,619.71 : x
  2. Step 2: Convert to fraction form
    8,140.35/12,194.75 = 4,619.71/x
  3. Step 3: Cross multiply
    8,140.35x = 12,194.75 × 4,619.71
  4. Step 4: Simplify right side
    8,140.35x = 56,336,235.32
  5. Step 5: Solve for x
    x = 56,336,235.32/8,140.35
  6. Step 6: Final answer
    x = 6,920.61

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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.