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Finding the Fourth Proportional to 7,939.13, 10,959.07 and 5,955.45

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Solution

The fourth proportional to 7,939.13, 10,959.07 and 5,955.45 is: 8,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.13 : 10,959.07 = 5,955.45 : x
  2. Step 2: Convert to fraction form
    7,939.13/10,959.07 = 5,955.45/x
  3. Step 3: Cross multiply
    7,939.13x = 10,959.07 × 5,955.45
  4. Step 4: Simplify right side
    7,939.13x = 65,266,178.54
  5. Step 5: Solve for x
    x = 65,266,178.54/7,939.13
  6. Step 6: Final answer
    x = 8,220.83

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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.