Home / 8,208.72-12,316.32-6,906.24

Finding the Fourth Proportional to 8,208.72, 12,316.32 and 6,906.24

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Solution

The fourth proportional to 8,208.72, 12,316.32 and 6,906.24 is: 10,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.72 : 12,316.32 = 6,906.24 : x
  2. Step 2: Convert to fraction form
    8,208.72/12,316.32 = 6,906.24/x
  3. Step 3: Cross multiply
    8,208.72x = 12,316.32 × 6,906.24
  4. Step 4: Simplify right side
    8,208.72x = 85,059,461.84
  5. Step 5: Solve for x
    x = 85,059,461.84/8,208.72
  6. Step 6: Final answer
    x = 10,362.09

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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.