Home / 8,130.49-12,192.67-3,197.43

Finding the Fourth Proportional to 8,130.49, 12,192.67 and 3,197.43

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Solution

The fourth proportional to 8,130.49, 12,192.67 and 3,197.43 is: 4,794.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.49 : 12,192.67 = 3,197.43 : x
  2. Step 2: Convert to fraction form
    8,130.49/12,192.67 = 3,197.43/x
  3. Step 3: Cross multiply
    8,130.49x = 12,192.67 × 3,197.43
  4. Step 4: Simplify right side
    8,130.49x = 38,985,208.84
  5. Step 5: Solve for x
    x = 38,985,208.84/8,130.49
  6. Step 6: Final answer
    x = 4,794.94

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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.