Home / 11,396.85-15,715.26-7,410.57

Finding the Fourth Proportional to 11,396.85, 15,715.26 and 7,410.57

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Solution

The fourth proportional to 11,396.85, 15,715.26 and 7,410.57 is: 10,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.85 : 15,715.26 = 7,410.57 : x
  2. Step 2: Convert to fraction form
    11,396.85/15,715.26 = 7,410.57/x
  3. Step 3: Cross multiply
    11,396.85x = 15,715.26 × 7,410.57
  4. Step 4: Simplify right side
    11,396.85x = 116,459,035.97
  5. Step 5: Solve for x
    x = 116,459,035.97/11,396.85
  6. Step 6: Final answer
    x = 10,218.53

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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.