Home / 13,568.56-20,356.97-9,143.99

Finding the Fourth Proportional to 13,568.56, 20,356.97 and 9,143.99

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Solution

The fourth proportional to 13,568.56, 20,356.97 and 9,143.99 is: 13,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.56 : 20,356.97 = 9,143.99 : x
  2. Step 2: Convert to fraction form
    13,568.56/20,356.97 = 9,143.99/x
  3. Step 3: Cross multiply
    13,568.56x = 20,356.97 × 9,143.99
  4. Step 4: Simplify right side
    13,568.56x = 186,143,910.38
  5. Step 5: Solve for x
    x = 186,143,910.38/13,568.56
  6. Step 6: Final answer
    x = 13,718.76

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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.