Home / 17,078.16-25,621.20-6,690

Finding the Fourth Proportional to 17,078.16, 25,621.20 and 6,690

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Solution

The fourth proportional to 17,078.16, 25,621.20 and 6,690 is: 10,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,078.16 : 25,621.20 = 6,690 : x
  2. Step 2: Convert to fraction form
    17,078.16/25,621.20 = 6,690/x
  3. Step 3: Cross multiply
    17,078.16x = 25,621.20 × 6,690
  4. Step 4: Simplify right side
    17,078.16x = 171,405,828
  5. Step 5: Solve for x
    x = 171,405,828/17,078.16
  6. Step 6: Final answer
    x = 10,036.55

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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.