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Finding the Fourth Proportional to 7,805.09, 10,769.81 and 4,448.04

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Solution

The fourth proportional to 7,805.09, 10,769.81 and 4,448.04 is: 6,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.09 : 10,769.81 = 4,448.04 : x
  2. Step 2: Convert to fraction form
    7,805.09/10,769.81 = 4,448.04/x
  3. Step 3: Cross multiply
    7,805.09x = 10,769.81 × 4,448.04
  4. Step 4: Simplify right side
    7,805.09x = 47,904,545.67
  5. Step 5: Solve for x
    x = 47,904,545.67/7,805.09
  6. Step 6: Final answer
    x = 6,137.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.