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Finding the Fourth Proportional to 17,653.87, 26,486.88 and 8,881.57

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Solution

The fourth proportional to 17,653.87, 26,486.88 and 8,881.57 is: 13,325.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.87 : 26,486.88 = 8,881.57 : x
  2. Step 2: Convert to fraction form
    17,653.87/26,486.88 = 8,881.57/x
  3. Step 3: Cross multiply
    17,653.87x = 26,486.88 × 8,881.57
  4. Step 4: Simplify right side
    17,653.87x = 235,245,078.80
  5. Step 5: Solve for x
    x = 235,245,078.80/17,653.87
  6. Step 6: Final answer
    x = 13,325.41

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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.