Home / 18,520.63-27,775.18-6,205.75

Finding the Fourth Proportional to 18,520.63, 27,775.18 and 6,205.75

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Solution

The fourth proportional to 18,520.63, 27,775.18 and 6,205.75 is: 9,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.63 : 27,775.18 = 6,205.75 : x
  2. Step 2: Convert to fraction form
    18,520.63/27,775.18 = 6,205.75/x
  3. Step 3: Cross multiply
    18,520.63x = 27,775.18 × 6,205.75
  4. Step 4: Simplify right side
    18,520.63x = 172,365,823.29
  5. Step 5: Solve for x
    x = 172,365,823.29/18,520.63
  6. Step 6: Final answer
    x = 9,306.69

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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.