Home / 7,986.93-10,996.88-6,789.56

Finding the Fourth Proportional to 7,986.93, 10,996.88 and 6,789.56

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Solution

The fourth proportional to 7,986.93, 10,996.88 and 6,789.56 is: 9,348.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.93 : 10,996.88 = 6,789.56 : x
  2. Step 2: Convert to fraction form
    7,986.93/10,996.88 = 6,789.56/x
  3. Step 3: Cross multiply
    7,986.93x = 10,996.88 × 6,789.56
  4. Step 4: Simplify right side
    7,986.93x = 74,663,887.64
  5. Step 5: Solve for x
    x = 74,663,887.64/7,986.93
  6. Step 6: Final answer
    x = 9,348.26

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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.