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Finding the Fourth Proportional to 7,661.43, 11,492.21 and 4,196.79

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Solution

The fourth proportional to 7,661.43, 11,492.21 and 4,196.79 is: 6,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.43 : 11,492.21 = 4,196.79 : x
  2. Step 2: Convert to fraction form
    7,661.43/11,492.21 = 4,196.79/x
  3. Step 3: Cross multiply
    7,661.43x = 11,492.21 × 4,196.79
  4. Step 4: Simplify right side
    7,661.43x = 48,230,392.01
  5. Step 5: Solve for x
    x = 48,230,392.01/7,661.43
  6. Step 6: Final answer
    x = 6,295.22

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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.