Home / 18,272.75-27,409.26-4,421.75

Finding the Fourth Proportional to 18,272.75, 27,409.26 and 4,421.75

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Solution

The fourth proportional to 18,272.75, 27,409.26 and 4,421.75 is: 6,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.75 : 27,409.26 = 4,421.75 : x
  2. Step 2: Convert to fraction form
    18,272.75/27,409.26 = 4,421.75/x
  3. Step 3: Cross multiply
    18,272.75x = 27,409.26 × 4,421.75
  4. Step 4: Simplify right side
    18,272.75x = 121,196,895.41
  5. Step 5: Solve for x
    x = 121,196,895.41/18,272.75
  6. Step 6: Final answer
    x = 6,632.66

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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.