Home / 18,181.08-27,243.68-10,770.80

Finding the Fourth Proportional to 18,181.08, 27,243.68 and 10,770.80

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Solution

The fourth proportional to 18,181.08, 27,243.68 and 10,770.80 is: 16,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.08 : 27,243.68 = 10,770.80 : x
  2. Step 2: Convert to fraction form
    18,181.08/27,243.68 = 10,770.80/x
  3. Step 3: Cross multiply
    18,181.08x = 27,243.68 × 10,770.80
  4. Step 4: Simplify right side
    18,181.08x = 293,436,038.47
  5. Step 5: Solve for x
    x = 293,436,038.47/18,181.08
  6. Step 6: Final answer
    x = 16,139.64

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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.