Home / 6,939.47-9,575.78-3,955.14

Finding the Fourth Proportional to 6,939.47, 9,575.78 and 3,955.14

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Solution

The fourth proportional to 6,939.47, 9,575.78 and 3,955.14 is: 5,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.47 : 9,575.78 = 3,955.14 : x
  2. Step 2: Convert to fraction form
    6,939.47/9,575.78 = 3,955.14/x
  3. Step 3: Cross multiply
    6,939.47x = 9,575.78 × 3,955.14
  4. Step 4: Simplify right side
    6,939.47x = 37,873,530.73
  5. Step 5: Solve for x
    x = 37,873,530.73/6,939.47
  6. Step 6: Final answer
    x = 5,457.70

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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.