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Finding the Fourth Proportional to 17,993.47, 26,966.44 and 8,636.35

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Solution

The fourth proportional to 17,993.47, 26,966.44 and 8,636.35 is: 12,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.47 : 26,966.44 = 8,636.35 : x
  2. Step 2: Convert to fraction form
    17,993.47/26,966.44 = 8,636.35/x
  3. Step 3: Cross multiply
    17,993.47x = 26,966.44 × 8,636.35
  4. Step 4: Simplify right side
    17,993.47x = 232,891,614.09
  5. Step 5: Solve for x
    x = 232,891,614.09/17,993.47
  6. Step 6: Final answer
    x = 12,943.12

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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.