Home / 8,130.82-12,195.14-2,287.94

Finding the Fourth Proportional to 8,130.82, 12,195.14 and 2,287.94

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Solution

The fourth proportional to 8,130.82, 12,195.14 and 2,287.94 is: 3,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.82 : 12,195.14 = 2,287.94 : x
  2. Step 2: Convert to fraction form
    8,130.82/12,195.14 = 2,287.94/x
  3. Step 3: Cross multiply
    8,130.82x = 12,195.14 × 2,287.94
  4. Step 4: Simplify right side
    8,130.82x = 27,901,748.61
  5. Step 5: Solve for x
    x = 27,901,748.61/8,130.82
  6. Step 6: Final answer
    x = 3,431.60

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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.