Home / 6,678.36-9,213.06-4,321.26

Finding the Fourth Proportional to 6,678.36, 9,213.06 and 4,321.26

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Solution

The fourth proportional to 6,678.36, 9,213.06 and 4,321.26 is: 5,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.36 : 9,213.06 = 4,321.26 : x
  2. Step 2: Convert to fraction form
    6,678.36/9,213.06 = 4,321.26/x
  3. Step 3: Cross multiply
    6,678.36x = 9,213.06 × 4,321.26
  4. Step 4: Simplify right side
    6,678.36x = 39,812,027.66
  5. Step 5: Solve for x
    x = 39,812,027.66/6,678.36
  6. Step 6: Final answer
    x = 5,961.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.