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Finding the Fourth Proportional to 12,797.07, 17,653.20 and 8,811.26

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Solution

The fourth proportional to 12,797.07, 17,653.20 and 8,811.26 is: 12,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.07 : 17,653.20 = 8,811.26 : x
  2. Step 2: Convert to fraction form
    12,797.07/17,653.20 = 8,811.26/x
  3. Step 3: Cross multiply
    12,797.07x = 17,653.20 × 8,811.26
  4. Step 4: Simplify right side
    12,797.07x = 155,546,935.03
  5. Step 5: Solve for x
    x = 155,546,935.03/12,797.07
  6. Step 6: Final answer
    x = 12,154.89

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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.