Home / 12,116.24-18,145.20-6,906.32

Finding the Fourth Proportional to 12,116.24, 18,145.20 and 6,906.32

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Solution

The fourth proportional to 12,116.24, 18,145.20 and 6,906.32 is: 10,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.24 : 18,145.20 = 6,906.32 : x
  2. Step 2: Convert to fraction form
    12,116.24/18,145.20 = 6,906.32/x
  3. Step 3: Cross multiply
    12,116.24x = 18,145.20 × 6,906.32
  4. Step 4: Simplify right side
    12,116.24x = 125,316,557.66
  5. Step 5: Solve for x
    x = 125,316,557.66/12,116.24
  6. Step 6: Final answer
    x = 10,342.86

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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.