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Finding the Fourth Proportional to 17,636.79, 26,445.87 and 7,771.44

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Solution

The fourth proportional to 17,636.79, 26,445.87 and 7,771.44 is: 11,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,636.79 : 26,445.87 = 7,771.44 : x
  2. Step 2: Convert to fraction form
    17,636.79/26,445.87 = 7,771.44/x
  3. Step 3: Cross multiply
    17,636.79x = 26,445.87 × 7,771.44
  4. Step 4: Simplify right side
    17,636.79x = 205,522,491.95
  5. Step 5: Solve for x
    x = 205,522,491.95/17,636.79
  6. Step 6: Final answer
    x = 11,653.06

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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.