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Finding the Fourth Proportional to 17,080.80, 25,622.80 and 7,219.92

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Solution

The fourth proportional to 17,080.80, 25,622.80 and 7,219.92 is: 10,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,080.80 : 25,622.80 = 7,219.92 : x
  2. Step 2: Convert to fraction form
    17,080.80/25,622.80 = 7,219.92/x
  3. Step 3: Cross multiply
    17,080.80x = 25,622.80 × 7,219.92
  4. Step 4: Simplify right side
    17,080.80x = 184,994,566.18
  5. Step 5: Solve for x
    x = 184,994,566.18/17,080.80
  6. Step 6: Final answer
    x = 10,830.56

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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.