Home / 7,769.78-10,724.37-4,786.10

Finding the Fourth Proportional to 7,769.78, 10,724.37 and 4,786.10

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Solution

The fourth proportional to 7,769.78, 10,724.37 and 4,786.10 is: 6,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.78 : 10,724.37 = 4,786.10 : x
  2. Step 2: Convert to fraction form
    7,769.78/10,724.37 = 4,786.10/x
  3. Step 3: Cross multiply
    7,769.78x = 10,724.37 × 4,786.10
  4. Step 4: Simplify right side
    7,769.78x = 51,327,907.26
  5. Step 5: Solve for x
    x = 51,327,907.26/7,769.78
  6. Step 6: Final answer
    x = 6,606.10

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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.