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Finding the Fourth Proportional to 9,309.51, 13,968.82 and 4,379.65

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Solution

The fourth proportional to 9,309.51, 13,968.82 and 4,379.65 is: 6,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.51 : 13,968.82 = 4,379.65 : x
  2. Step 2: Convert to fraction form
    9,309.51/13,968.82 = 4,379.65/x
  3. Step 3: Cross multiply
    9,309.51x = 13,968.82 × 4,379.65
  4. Step 4: Simplify right side
    9,309.51x = 61,178,542.51
  5. Step 5: Solve for x
    x = 61,178,542.51/9,309.51
  6. Step 6: Final answer
    x = 6,571.62

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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.