Home / 8,159.76-12,185.46-6,601.68

Finding the Fourth Proportional to 8,159.76, 12,185.46 and 6,601.68

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Solution

The fourth proportional to 8,159.76, 12,185.46 and 6,601.68 is: 9,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.76 : 12,185.46 = 6,601.68 : x
  2. Step 2: Convert to fraction form
    8,159.76/12,185.46 = 6,601.68/x
  3. Step 3: Cross multiply
    8,159.76x = 12,185.46 × 6,601.68
  4. Step 4: Simplify right side
    8,159.76x = 80,444,507.57
  5. Step 5: Solve for x
    x = 80,444,507.57/8,159.76
  6. Step 6: Final answer
    x = 9,858.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.