Home / 18,117.32-27,185.25-8,255.32

Finding the Fourth Proportional to 18,117.32, 27,185.25 and 8,255.32

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Solution

The fourth proportional to 18,117.32, 27,185.25 and 8,255.32 is: 12,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.32 : 27,185.25 = 8,255.32 : x
  2. Step 2: Convert to fraction form
    18,117.32/27,185.25 = 8,255.32/x
  3. Step 3: Cross multiply
    18,117.32x = 27,185.25 × 8,255.32
  4. Step 4: Simplify right side
    18,117.32x = 224,422,831.37
  5. Step 5: Solve for x
    x = 224,422,831.37/18,117.32
  6. Step 6: Final answer
    x = 12,387.20

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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.