Home / 8,456.36-12,684.62-3,776.60

Finding the Fourth Proportional to 8,456.36, 12,684.62 and 3,776.60

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Solution

The fourth proportional to 8,456.36, 12,684.62 and 3,776.60 is: 5,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.36 : 12,684.62 = 3,776.60 : x
  2. Step 2: Convert to fraction form
    8,456.36/12,684.62 = 3,776.60/x
  3. Step 3: Cross multiply
    8,456.36x = 12,684.62 × 3,776.60
  4. Step 4: Simplify right side
    8,456.36x = 47,904,762.88
  5. Step 5: Solve for x
    x = 47,904,762.88/8,456.36
  6. Step 6: Final answer
    x = 5,664.94

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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.