Home / 18,535.28-27,774.86-12,272.86

Finding the Fourth Proportional to 18,535.28, 27,774.86 and 12,272.86

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Solution

The fourth proportional to 18,535.28, 27,774.86 and 12,272.86 is: 18,390.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.28 : 27,774.86 = 12,272.86 : x
  2. Step 2: Convert to fraction form
    18,535.28/27,774.86 = 12,272.86/x
  3. Step 3: Cross multiply
    18,535.28x = 27,774.86 × 12,272.86
  4. Step 4: Simplify right side
    18,535.28x = 340,876,941.65
  5. Step 5: Solve for x
    x = 340,876,941.65/18,535.28
  6. Step 6: Final answer
    x = 18,390.71

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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.