Home / 8,137.55-12,187.87-5,175.99

Finding the Fourth Proportional to 8,137.55, 12,187.87 and 5,175.99

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Solution

The fourth proportional to 8,137.55, 12,187.87 and 5,175.99 is: 7,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.55 : 12,187.87 = 5,175.99 : x
  2. Step 2: Convert to fraction form
    8,137.55/12,187.87 = 5,175.99/x
  3. Step 3: Cross multiply
    8,137.55x = 12,187.87 × 5,175.99
  4. Step 4: Simplify right side
    8,137.55x = 63,084,293.24
  5. Step 5: Solve for x
    x = 63,084,293.24/8,137.55
  6. Step 6: Final answer
    x = 7,752.25

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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.