Home / 12,042.24-18,074.22-7,116.36

Finding the Fourth Proportional to 12,042.24, 18,074.22 and 7,116.36

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Solution

The fourth proportional to 12,042.24, 18,074.22 and 7,116.36 is: 10,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.24 : 18,074.22 = 7,116.36 : x
  2. Step 2: Convert to fraction form
    12,042.24/18,074.22 = 7,116.36/x
  3. Step 3: Cross multiply
    12,042.24x = 18,074.22 × 7,116.36
  4. Step 4: Simplify right side
    12,042.24x = 128,622,656.24
  5. Step 5: Solve for x
    x = 128,622,656.24/12,042.24
  6. Step 6: Final answer
    x = 10,680.96

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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.