Home / 11,416.13-17,129.32-7,255.05

Finding the Fourth Proportional to 11,416.13, 17,129.32 and 7,255.05

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Solution

The fourth proportional to 11,416.13, 17,129.32 and 7,255.05 is: 10,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.13 : 17,129.32 = 7,255.05 : x
  2. Step 2: Convert to fraction form
    11,416.13/17,129.32 = 7,255.05/x
  3. Step 3: Cross multiply
    11,416.13x = 17,129.32 × 7,255.05
  4. Step 4: Simplify right side
    11,416.13x = 124,274,119.16
  5. Step 5: Solve for x
    x = 124,274,119.16/11,416.13
  6. Step 6: Final answer
    x = 10,885.84

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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.