Home / 8,455.29-12,678.27-2,611.14

Finding the Fourth Proportional to 8,455.29, 12,678.27 and 2,611.14

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Solution

The fourth proportional to 8,455.29, 12,678.27 and 2,611.14 is: 3,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.29 : 12,678.27 = 2,611.14 : x
  2. Step 2: Convert to fraction form
    8,455.29/12,678.27 = 2,611.14/x
  3. Step 3: Cross multiply
    8,455.29x = 12,678.27 × 2,611.14
  4. Step 4: Simplify right side
    8,455.29x = 33,104,737.93
  5. Step 5: Solve for x
    x = 33,104,737.93/8,455.29
  6. Step 6: Final answer
    x = 3,915.27

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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.