Home / 6,509.36-9,763.98-3,387.78

Finding the Fourth Proportional to 6,509.36, 9,763.98 and 3,387.78

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Solution

The fourth proportional to 6,509.36, 9,763.98 and 3,387.78 is: 5,081.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,509.36 : 9,763.98 = 3,387.78 : x
  2. Step 2: Convert to fraction form
    6,509.36/9,763.98 = 3,387.78/x
  3. Step 3: Cross multiply
    6,509.36x = 9,763.98 × 3,387.78
  4. Step 4: Simplify right side
    6,509.36x = 33,078,216.16
  5. Step 5: Solve for x
    x = 33,078,216.16/6,509.36
  6. Step 6: Final answer
    x = 5,081.64

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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.