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Finding the Fourth Proportional to 17,765.67, 26,646.08 and 5,287.62

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Solution

The fourth proportional to 17,765.67, 26,646.08 and 5,287.62 is: 7,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,765.67 : 26,646.08 = 5,287.62 : x
  2. Step 2: Convert to fraction form
    17,765.67/26,646.08 = 5,287.62/x
  3. Step 3: Cross multiply
    17,765.67x = 26,646.08 × 5,287.62
  4. Step 4: Simplify right side
    17,765.67x = 140,894,319.09
  5. Step 5: Solve for x
    x = 140,894,319.09/17,765.67
  6. Step 6: Final answer
    x = 7,930.71

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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.