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Finding the Fourth Proportional to 17,295.79, 25,919.35 and 9,889.15

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Solution

The fourth proportional to 17,295.79, 25,919.35 and 9,889.15 is: 14,819.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,295.79 : 25,919.35 = 9,889.15 : x
  2. Step 2: Convert to fraction form
    17,295.79/25,919.35 = 9,889.15/x
  3. Step 3: Cross multiply
    17,295.79x = 25,919.35 × 9,889.15
  4. Step 4: Simplify right side
    17,295.79x = 256,320,340.05
  5. Step 5: Solve for x
    x = 256,320,340.05/17,295.79
  6. Step 6: Final answer
    x = 14,819.81

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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.