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Finding the Fourth Proportional to 17,653.62, 26,440.11 and 8,426.10

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Solution

The fourth proportional to 17,653.62, 26,440.11 and 8,426.10 is: 12,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.62 : 26,440.11 = 8,426.10 : x
  2. Step 2: Convert to fraction form
    17,653.62/26,440.11 = 8,426.10/x
  3. Step 3: Cross multiply
    17,653.62x = 26,440.11 × 8,426.10
  4. Step 4: Simplify right side
    17,653.62x = 222,787,010.87
  5. Step 5: Solve for x
    x = 222,787,010.87/17,653.62
  6. Step 6: Final answer
    x = 12,619.91

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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.