Home / 11,625.76-16,045.68-6,912.64

Finding the Fourth Proportional to 11,625.76, 16,045.68 and 6,912.64

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Solution

The fourth proportional to 11,625.76, 16,045.68 and 6,912.64 is: 9,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,625.76 : 16,045.68 = 6,912.64 : x
  2. Step 2: Convert to fraction form
    11,625.76/16,045.68 = 6,912.64/x
  3. Step 3: Cross multiply
    11,625.76x = 16,045.68 × 6,912.64
  4. Step 4: Simplify right side
    11,625.76x = 110,918,009.40
  5. Step 5: Solve for x
    x = 110,918,009.40/11,625.76
  6. Step 6: Final answer
    x = 9,540.71

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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.