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Finding the Fourth Proportional to 6,647.54, 9,950 and 4,421.24

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Solution

The fourth proportional to 6,647.54, 9,950 and 4,421.24 is: 6,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.54 : 9,950 = 4,421.24 : x
  2. Step 2: Convert to fraction form
    6,647.54/9,950 = 4,421.24/x
  3. Step 3: Cross multiply
    6,647.54x = 9,950 × 4,421.24
  4. Step 4: Simplify right side
    6,647.54x = 43,991,338
  5. Step 5: Solve for x
    x = 43,991,338/6,647.54
  6. Step 6: Final answer
    x = 6,617.69

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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.