Home / 18,395.30-27,571.35-8,513.71

Finding the Fourth Proportional to 18,395.30, 27,571.35 and 8,513.71

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Solution

The fourth proportional to 18,395.30, 27,571.35 and 8,513.71 is: 12,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,395.30 : 27,571.35 = 8,513.71 : x
  2. Step 2: Convert to fraction form
    18,395.30/27,571.35 = 8,513.71/x
  3. Step 3: Cross multiply
    18,395.30x = 27,571.35 × 8,513.71
  4. Step 4: Simplify right side
    18,395.30x = 234,734,478.21
  5. Step 5: Solve for x
    x = 234,734,478.21/18,395.30
  6. Step 6: Final answer
    x = 12,760.57

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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.