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Finding the Fourth Proportional to 8,673.40, 11,969.22 and 4,694.47

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Solution

The fourth proportional to 8,673.40, 11,969.22 and 4,694.47 is: 6,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.40 : 11,969.22 = 4,694.47 : x
  2. Step 2: Convert to fraction form
    8,673.40/11,969.22 = 4,694.47/x
  3. Step 3: Cross multiply
    8,673.40x = 11,969.22 × 4,694.47
  4. Step 4: Simplify right side
    8,673.40x = 56,189,144.21
  5. Step 5: Solve for x
    x = 56,189,144.21/8,673.40
  6. Step 6: Final answer
    x = 6,478.33

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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.