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Finding the Fourth Proportional to 6,992.87, 10,486.23 and 3,705.21

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Solution

The fourth proportional to 6,992.87, 10,486.23 and 3,705.21 is: 5,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.87 : 10,486.23 = 3,705.21 : x
  2. Step 2: Convert to fraction form
    6,992.87/10,486.23 = 3,705.21/x
  3. Step 3: Cross multiply
    6,992.87x = 10,486.23 × 3,705.21
  4. Step 4: Simplify right side
    6,992.87x = 38,853,670.36
  5. Step 5: Solve for x
    x = 38,853,670.36/6,992.87
  6. Step 6: Final answer
    x = 5,556.19

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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.