Home / 18,520.17-27,771.75-6,825.20

Finding the Fourth Proportional to 18,520.17, 27,771.75 and 6,825.20

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Solution

The fourth proportional to 18,520.17, 27,771.75 and 6,825.20 is: 10,234.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.17 : 27,771.75 = 6,825.20 : x
  2. Step 2: Convert to fraction form
    18,520.17/27,771.75 = 6,825.20/x
  3. Step 3: Cross multiply
    18,520.17x = 27,771.75 × 6,825.20
  4. Step 4: Simplify right side
    18,520.17x = 189,547,609.24
  5. Step 5: Solve for x
    x = 189,547,609.24/18,520.17
  6. Step 6: Final answer
    x = 10,234.66

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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.