Home / 7,769.68-10,721.79-4,412.06

Finding the Fourth Proportional to 7,769.68, 10,721.79 and 4,412.06

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Solution

The fourth proportional to 7,769.68, 10,721.79 and 4,412.06 is: 6,088.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.68 : 10,721.79 = 4,412.06 : x
  2. Step 2: Convert to fraction form
    7,769.68/10,721.79 = 4,412.06/x
  3. Step 3: Cross multiply
    7,769.68x = 10,721.79 × 4,412.06
  4. Step 4: Simplify right side
    7,769.68x = 47,305,127.18
  5. Step 5: Solve for x
    x = 47,305,127.18/7,769.68
  6. Step 6: Final answer
    x = 6,088.43

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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.