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Finding the Fourth Proportional to 17,319.69, 25,979.54 and 9,919.02

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Solution

The fourth proportional to 17,319.69, 25,979.54 and 9,919.02 is: 14,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,319.69 : 25,979.54 = 9,919.02 : x
  2. Step 2: Convert to fraction form
    17,319.69/25,979.54 = 9,919.02/x
  3. Step 3: Cross multiply
    17,319.69x = 25,979.54 × 9,919.02
  4. Step 4: Simplify right side
    17,319.69x = 257,691,624.68
  5. Step 5: Solve for x
    x = 257,691,624.68/17,319.69
  6. Step 6: Final answer
    x = 14,878.54

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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.