Home / 8,168.46-11,274.78-4,813.21

Finding the Fourth Proportional to 8,168.46, 11,274.78 and 4,813.21

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Solution

The fourth proportional to 8,168.46, 11,274.78 and 4,813.21 is: 6,643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.46 : 11,274.78 = 4,813.21 : x
  2. Step 2: Convert to fraction form
    8,168.46/11,274.78 = 4,813.21/x
  3. Step 3: Cross multiply
    8,168.46x = 11,274.78 × 4,813.21
  4. Step 4: Simplify right side
    8,168.46x = 54,267,883.84
  5. Step 5: Solve for x
    x = 54,267,883.84/8,168.46
  6. Step 6: Final answer
    x = 6,643.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.