Home / 6,816.23-9,405.56-3,945.45

Finding the Fourth Proportional to 6,816.23, 9,405.56 and 3,945.45

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Solution

The fourth proportional to 6,816.23, 9,405.56 and 3,945.45 is: 5,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.23 : 9,405.56 = 3,945.45 : x
  2. Step 2: Convert to fraction form
    6,816.23/9,405.56 = 3,945.45/x
  3. Step 3: Cross multiply
    6,816.23x = 9,405.56 × 3,945.45
  4. Step 4: Simplify right side
    6,816.23x = 37,109,166.70
  5. Step 5: Solve for x
    x = 37,109,166.70/6,816.23
  6. Step 6: Final answer
    x = 5,444.24

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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.