Home / 11,211.57-15,464.40-6,960.09

Finding the Fourth Proportional to 11,211.57, 15,464.40 and 6,960.09

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Solution

The fourth proportional to 11,211.57, 15,464.40 and 6,960.09 is: 9,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.57 : 15,464.40 = 6,960.09 : x
  2. Step 2: Convert to fraction form
    11,211.57/15,464.40 = 6,960.09/x
  3. Step 3: Cross multiply
    11,211.57x = 15,464.40 × 6,960.09
  4. Step 4: Simplify right side
    11,211.57x = 107,633,615.80
  5. Step 5: Solve for x
    x = 107,633,615.80/11,211.57
  6. Step 6: Final answer
    x = 9,600.23

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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.