Home / 12,393.32-17,116.96-8,163.30

Finding the Fourth Proportional to 12,393.32, 17,116.96 and 8,163.30

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Solution

The fourth proportional to 12,393.32, 17,116.96 and 8,163.30 is: 11,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.32 : 17,116.96 = 8,163.30 : x
  2. Step 2: Convert to fraction form
    12,393.32/17,116.96 = 8,163.30/x
  3. Step 3: Cross multiply
    12,393.32x = 17,116.96 × 8,163.30
  4. Step 4: Simplify right side
    12,393.32x = 139,730,879.57
  5. Step 5: Solve for x
    x = 139,730,879.57/12,393.32
  6. Step 6: Final answer
    x = 11,274.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.