Home / 11,091.89-15,306.21-6,494.06

Finding the Fourth Proportional to 11,091.89, 15,306.21 and 6,494.06

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Solution

The fourth proportional to 11,091.89, 15,306.21 and 6,494.06 is: 8,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.89 : 15,306.21 = 6,494.06 : x
  2. Step 2: Convert to fraction form
    11,091.89/15,306.21 = 6,494.06/x
  3. Step 3: Cross multiply
    11,091.89x = 15,306.21 × 6,494.06
  4. Step 4: Simplify right side
    11,091.89x = 99,399,458.29
  5. Step 5: Solve for x
    x = 99,399,458.29/11,091.89
  6. Step 6: Final answer
    x = 8,961.46

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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.