Home / 7,470.97-11,112.26-6,805.28

Finding the Fourth Proportional to 7,470.97, 11,112.26 and 6,805.28

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Solution

The fourth proportional to 7,470.97, 11,112.26 and 6,805.28 is: 10,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.97 : 11,112.26 = 6,805.28 : x
  2. Step 2: Convert to fraction form
    7,470.97/11,112.26 = 6,805.28/x
  3. Step 3: Cross multiply
    7,470.97x = 11,112.26 × 6,805.28
  4. Step 4: Simplify right side
    7,470.97x = 75,622,034.49
  5. Step 5: Solve for x
    x = 75,622,034.49/7,470.97
  6. Step 6: Final answer
    x = 10,122.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.