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Finding the Fourth Proportional to 17,459.59, 26,179.45 and 11,919.64

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Solution

The fourth proportional to 17,459.59, 26,179.45 and 11,919.64 is: 17,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,459.59 : 26,179.45 = 11,919.64 : x
  2. Step 2: Convert to fraction form
    17,459.59/26,179.45 = 11,919.64/x
  3. Step 3: Cross multiply
    17,459.59x = 26,179.45 × 11,919.64
  4. Step 4: Simplify right side
    17,459.59x = 312,049,619.40
  5. Step 5: Solve for x
    x = 312,049,619.40/17,459.59
  6. Step 6: Final answer
    x = 17,872.68

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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.