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Finding the Fourth Proportional to 7,843.06, 11,765 and 3,460.56

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Solution

The fourth proportional to 7,843.06, 11,765 and 3,460.56 is: 5,191.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.06 : 11,765 = 3,460.56 : x
  2. Step 2: Convert to fraction form
    7,843.06/11,765 = 3,460.56/x
  3. Step 3: Cross multiply
    7,843.06x = 11,765 × 3,460.56
  4. Step 4: Simplify right side
    7,843.06x = 40,713,488.40
  5. Step 5: Solve for x
    x = 40,713,488.40/7,843.06
  6. Step 6: Final answer
    x = 5,191.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.