Home / 6,921.35-9,550.60-3,896.10

Finding the Fourth Proportional to 6,921.35, 9,550.60 and 3,896.10

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Solution

The fourth proportional to 6,921.35, 9,550.60 and 3,896.10 is: 5,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.35 : 9,550.60 = 3,896.10 : x
  2. Step 2: Convert to fraction form
    6,921.35/9,550.60 = 3,896.10/x
  3. Step 3: Cross multiply
    6,921.35x = 9,550.60 × 3,896.10
  4. Step 4: Simplify right side
    6,921.35x = 37,210,073.18
  5. Step 5: Solve for x
    x = 37,210,073.18/6,921.35
  6. Step 6: Final answer
    x = 5,376.13

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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.