Home / 11,708.15-16,157.75-6,672.11

Finding the Fourth Proportional to 11,708.15, 16,157.75 and 6,672.11

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Solution

The fourth proportional to 11,708.15, 16,157.75 and 6,672.11 is: 9,207.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.15 : 16,157.75 = 6,672.11 : x
  2. Step 2: Convert to fraction form
    11,708.15/16,157.75 = 6,672.11/x
  3. Step 3: Cross multiply
    11,708.15x = 16,157.75 × 6,672.11
  4. Step 4: Simplify right side
    11,708.15x = 107,806,171.20
  5. Step 5: Solve for x
    x = 107,806,171.20/11,708.15
  6. Step 6: Final answer
    x = 9,207.79

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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.