Home / 7,936.81-10,927.86-6,739.28

Finding the Fourth Proportional to 7,936.81, 10,927.86 and 6,739.28

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Solution

The fourth proportional to 7,936.81, 10,927.86 and 6,739.28 is: 9,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.81 : 10,927.86 = 6,739.28 : x
  2. Step 2: Convert to fraction form
    7,936.81/10,927.86 = 6,739.28/x
  3. Step 3: Cross multiply
    7,936.81x = 10,927.86 × 6,739.28
  4. Step 4: Simplify right side
    7,936.81x = 73,645,876.58
  5. Step 5: Solve for x
    x = 73,645,876.58/7,936.81
  6. Step 6: Final answer
    x = 9,279.03

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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.