Home / 8,644.05-12,957.77-5,515.22

Finding the Fourth Proportional to 8,644.05, 12,957.77 and 5,515.22

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Solution

The fourth proportional to 8,644.05, 12,957.77 and 5,515.22 is: 8,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.05 : 12,957.77 = 5,515.22 : x
  2. Step 2: Convert to fraction form
    8,644.05/12,957.77 = 5,515.22/x
  3. Step 3: Cross multiply
    8,644.05x = 12,957.77 × 5,515.22
  4. Step 4: Simplify right side
    8,644.05x = 71,464,998.44
  5. Step 5: Solve for x
    x = 71,464,998.44/8,644.05
  6. Step 6: Final answer
    x = 8,267.54

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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.