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Finding the Fourth Proportional to 17,284.50, 25,940.58 and 7,928.92

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Solution

The fourth proportional to 17,284.50, 25,940.58 and 7,928.92 is: 11,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,284.50 : 25,940.58 = 7,928.92 : x
  2. Step 2: Convert to fraction form
    17,284.50/25,940.58 = 7,928.92/x
  3. Step 3: Cross multiply
    17,284.50x = 25,940.58 × 7,928.92
  4. Step 4: Simplify right side
    17,284.50x = 205,680,783.57
  5. Step 5: Solve for x
    x = 205,680,783.57/17,284.50
  6. Step 6: Final answer
    x = 11,899.72

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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.