Home / 11,715.28-17,568.70-5,474.12

Finding the Fourth Proportional to 11,715.28, 17,568.70 and 5,474.12

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Solution

The fourth proportional to 11,715.28, 17,568.70 and 5,474.12 is: 8,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.28 : 17,568.70 = 5,474.12 : x
  2. Step 2: Convert to fraction form
    11,715.28/17,568.70 = 5,474.12/x
  3. Step 3: Cross multiply
    11,715.28x = 17,568.70 × 5,474.12
  4. Step 4: Simplify right side
    11,715.28x = 96,173,172.04
  5. Step 5: Solve for x
    x = 96,173,172.04/11,715.28
  6. Step 6: Final answer
    x = 8,209.21

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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.