Home / 18,488.00-27,720.92-8,480.21

Finding the Fourth Proportional to 18,488.00, 27,720.92 and 8,480.21

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Solution

The fourth proportional to 18,488.00, 27,720.92 and 8,480.21 is: 12,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.00 : 27,720.92 = 8,480.21 : x
  2. Step 2: Convert to fraction form
    18,488.00/27,720.92 = 8,480.21/x
  3. Step 3: Cross multiply
    18,488.00x = 27,720.92 × 8,480.21
  4. Step 4: Simplify right side
    18,488.00x = 235,079,041.99
  5. Step 5: Solve for x
    x = 235,079,041.99/18,488.00
  6. Step 6: Final answer
    x = 12,715.23

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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.