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Finding the Fourth Proportional to 12,674.27, 17,489.78 and 7,008.68

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Solution

The fourth proportional to 12,674.27, 17,489.78 and 7,008.68 is: 9,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.27 : 17,489.78 = 7,008.68 : x
  2. Step 2: Convert to fraction form
    12,674.27/17,489.78 = 7,008.68/x
  3. Step 3: Cross multiply
    12,674.27x = 17,489.78 × 7,008.68
  4. Step 4: Simplify right side
    12,674.27x = 122,580,271.29
  5. Step 5: Solve for x
    x = 122,580,271.29/12,674.27
  6. Step 6: Final answer
    x = 9,671.58

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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.