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Finding the Fourth Proportional to 6,611.24, 9,916.62 and 2,661.27

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Solution

The fourth proportional to 6,611.24, 9,916.62 and 2,661.27 is: 3,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.24 : 9,916.62 = 2,661.27 : x
  2. Step 2: Convert to fraction form
    6,611.24/9,916.62 = 2,661.27/x
  3. Step 3: Cross multiply
    6,611.24x = 9,916.62 × 2,661.27
  4. Step 4: Simplify right side
    6,611.24x = 26,390,803.31
  5. Step 5: Solve for x
    x = 26,390,803.31/6,611.24
  6. Step 6: Final answer
    x = 3,991.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.