Home / 12,179.52-18,261.18-4,387.32

Finding the Fourth Proportional to 12,179.52, 18,261.18 and 4,387.32

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Solution

The fourth proportional to 12,179.52, 18,261.18 and 4,387.32 is: 6,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.52 : 18,261.18 = 4,387.32 : x
  2. Step 2: Convert to fraction form
    12,179.52/18,261.18 = 4,387.32/x
  3. Step 3: Cross multiply
    12,179.52x = 18,261.18 × 4,387.32
  4. Step 4: Simplify right side
    12,179.52x = 80,117,640.24
  5. Step 5: Solve for x
    x = 80,117,640.24/12,179.52
  6. Step 6: Final answer
    x = 6,578.06

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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.