Home / 11,402.46-15,735.66-7,153.70

Finding the Fourth Proportional to 11,402.46, 15,735.66 and 7,153.70

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Solution

The fourth proportional to 11,402.46, 15,735.66 and 7,153.70 is: 9,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.46 : 15,735.66 = 7,153.70 : x
  2. Step 2: Convert to fraction form
    11,402.46/15,735.66 = 7,153.70/x
  3. Step 3: Cross multiply
    11,402.46x = 15,735.66 × 7,153.70
  4. Step 4: Simplify right side
    11,402.46x = 112,568,190.94
  5. Step 5: Solve for x
    x = 112,568,190.94/11,402.46
  6. Step 6: Final answer
    x = 9,872.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.