Home / 12,119.49-18,179.22-3,354.40

Finding the Fourth Proportional to 12,119.49, 18,179.22 and 3,354.40

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Solution

The fourth proportional to 12,119.49, 18,179.22 and 3,354.40 is: 5,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.49 : 18,179.22 = 3,354.40 : x
  2. Step 2: Convert to fraction form
    12,119.49/18,179.22 = 3,354.40/x
  3. Step 3: Cross multiply
    12,119.49x = 18,179.22 × 3,354.40
  4. Step 4: Simplify right side
    12,119.49x = 60,980,410.87
  5. Step 5: Solve for x
    x = 60,980,410.87/12,119.49
  6. Step 6: Final answer
    x = 5,031.60

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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.