Home / 11,611.92-16,016.30-7,138.14

Finding the Fourth Proportional to 11,611.92, 16,016.30 and 7,138.14

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Solution

The fourth proportional to 11,611.92, 16,016.30 and 7,138.14 is: 9,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.92 : 16,016.30 = 7,138.14 : x
  2. Step 2: Convert to fraction form
    11,611.92/16,016.30 = 7,138.14/x
  3. Step 3: Cross multiply
    11,611.92x = 16,016.30 × 7,138.14
  4. Step 4: Simplify right side
    11,611.92x = 114,326,612.79
  5. Step 5: Solve for x
    x = 114,326,612.79/11,611.92
  6. Step 6: Final answer
    x = 9,845.62

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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.