Home / 17,113.92-25,664.40-6,720

Finding the Fourth Proportional to 17,113.92, 25,664.40 and 6,720

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Solution

The fourth proportional to 17,113.92, 25,664.40 and 6,720 is: 10,077.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,113.92 : 25,664.40 = 6,720 : x
  2. Step 2: Convert to fraction form
    17,113.92/25,664.40 = 6,720/x
  3. Step 3: Cross multiply
    17,113.92x = 25,664.40 × 6,720
  4. Step 4: Simplify right side
    17,113.92x = 172,464,768
  5. Step 5: Solve for x
    x = 172,464,768/17,113.92
  6. Step 6: Final answer
    x = 10,077.46

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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.