Home / 8,122.49-12,181.28-4,224.77

Finding the Fourth Proportional to 8,122.49, 12,181.28 and 4,224.77

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Solution

The fourth proportional to 8,122.49, 12,181.28 and 4,224.77 is: 6,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.49 : 12,181.28 = 4,224.77 : x
  2. Step 2: Convert to fraction form
    8,122.49/12,181.28 = 4,224.77/x
  3. Step 3: Cross multiply
    8,122.49x = 12,181.28 × 4,224.77
  4. Step 4: Simplify right side
    8,122.49x = 51,463,024.28
  5. Step 5: Solve for x
    x = 51,463,024.28/8,122.49
  6. Step 6: Final answer
    x = 6,335.87

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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.