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Finding the Fourth Proportional to 7,083.99, 10,645.47 and 6,621.14

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Solution

The fourth proportional to 7,083.99, 10,645.47 and 6,621.14 is: 9,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,083.99 : 10,645.47 = 6,621.14 : x
  2. Step 2: Convert to fraction form
    7,083.99/10,645.47 = 6,621.14/x
  3. Step 3: Cross multiply
    7,083.99x = 10,645.47 × 6,621.14
  4. Step 4: Simplify right side
    7,083.99x = 70,485,173.85
  5. Step 5: Solve for x
    x = 70,485,173.85/7,083.99
  6. Step 6: Final answer
    x = 9,949.93

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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.