Home / 18,570.28-27,849.84-5,419.12

Finding the Fourth Proportional to 18,570.28, 27,849.84 and 5,419.12

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Solution

The fourth proportional to 18,570.28, 27,849.84 and 5,419.12 is: 8,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.28 : 27,849.84 = 5,419.12 : x
  2. Step 2: Convert to fraction form
    18,570.28/27,849.84 = 5,419.12/x
  3. Step 3: Cross multiply
    18,570.28x = 27,849.84 × 5,419.12
  4. Step 4: Simplify right side
    18,570.28x = 150,921,624.94
  5. Step 5: Solve for x
    x = 150,921,624.94/18,570.28
  6. Step 6: Final answer
    x = 8,127.05

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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.