Home / 8,690.94-13,034.39-5,181.93

Finding the Fourth Proportional to 8,690.94, 13,034.39 and 5,181.93

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Solution

The fourth proportional to 8,690.94, 13,034.39 and 5,181.93 is: 7,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.94 : 13,034.39 = 5,181.93 : x
  2. Step 2: Convert to fraction form
    8,690.94/13,034.39 = 5,181.93/x
  3. Step 3: Cross multiply
    8,690.94x = 13,034.39 × 5,181.93
  4. Step 4: Simplify right side
    8,690.94x = 67,543,296.57
  5. Step 5: Solve for x
    x = 67,543,296.57/8,690.94
  6. Step 6: Final answer
    x = 7,771.69

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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.