Home / 6,923.67-9,555.21-3,939.63

Finding the Fourth Proportional to 6,923.67, 9,555.21 and 3,939.63

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Solution

The fourth proportional to 6,923.67, 9,555.21 and 3,939.63 is: 5,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,923.67 : 9,555.21 = 3,939.63 : x
  2. Step 2: Convert to fraction form
    6,923.67/9,555.21 = 3,939.63/x
  3. Step 3: Cross multiply
    6,923.67x = 9,555.21 × 3,939.63
  4. Step 4: Simplify right side
    6,923.67x = 37,643,991.97
  5. Step 5: Solve for x
    x = 37,643,991.97/6,923.67
  6. Step 6: Final answer
    x = 5,437.00

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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.