Home / 17,120.75-25,679.07-4,640.00

Finding the Fourth Proportional to 17,120.75, 25,679.07 and 4,640.00

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Solution

The fourth proportional to 17,120.75, 25,679.07 and 4,640.00 is: 6,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.75 : 25,679.07 = 4,640.00 : x
  2. Step 2: Convert to fraction form
    17,120.75/25,679.07 = 4,640.00/x
  3. Step 3: Cross multiply
    17,120.75x = 25,679.07 × 4,640.00
  4. Step 4: Simplify right side
    17,120.75x = 119,150,756.40
  5. Step 5: Solve for x
    x = 119,150,756.40/17,120.75
  6. Step 6: Final answer
    x = 6,959.44

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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.