Home / 12,906.32-19,359.47-3,672.32

Finding the Fourth Proportional to 12,906.32, 19,359.47 and 3,672.32

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Solution

The fourth proportional to 12,906.32, 19,359.47 and 3,672.32 is: 5,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.32 : 19,359.47 = 3,672.32 : x
  2. Step 2: Convert to fraction form
    12,906.32/19,359.47 = 3,672.32/x
  3. Step 3: Cross multiply
    12,906.32x = 19,359.47 × 3,672.32
  4. Step 4: Simplify right side
    12,906.32x = 71,094,168.87
  5. Step 5: Solve for x
    x = 71,094,168.87/12,906.32
  6. Step 6: Final answer
    x = 5,508.48

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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.