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Finding the Fourth Proportional to 17,121.63, 25,684.49 and 7,259.63

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Solution

The fourth proportional to 17,121.63, 25,684.49 and 7,259.63 is: 10,890.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.63 : 25,684.49 = 7,259.63 : x
  2. Step 2: Convert to fraction form
    17,121.63/25,684.49 = 7,259.63/x
  3. Step 3: Cross multiply
    17,121.63x = 25,684.49 × 7,259.63
  4. Step 4: Simplify right side
    17,121.63x = 186,459,783.87
  5. Step 5: Solve for x
    x = 186,459,783.87/17,121.63
  6. Step 6: Final answer
    x = 10,890.31

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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.