Home / 12,161.12-18,242.49-3,841.48

Finding the Fourth Proportional to 12,161.12, 18,242.49 and 3,841.48

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Solution

The fourth proportional to 12,161.12, 18,242.49 and 3,841.48 is: 5,762.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.12 : 18,242.49 = 3,841.48 : x
  2. Step 2: Convert to fraction form
    12,161.12/18,242.49 = 3,841.48/x
  3. Step 3: Cross multiply
    12,161.12x = 18,242.49 × 3,841.48
  4. Step 4: Simplify right side
    12,161.12x = 70,078,160.49
  5. Step 5: Solve for x
    x = 70,078,160.49/12,161.12
  6. Step 6: Final answer
    x = 5,762.48

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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.