Home / 10,663.78-15,995.67-3,268.21

Finding the Fourth Proportional to 10,663.78, 15,995.67 and 3,268.21

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Solution

The fourth proportional to 10,663.78, 15,995.67 and 3,268.21 is: 4,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.78 : 15,995.67 = 3,268.21 : x
  2. Step 2: Convert to fraction form
    10,663.78/15,995.67 = 3,268.21/x
  3. Step 3: Cross multiply
    10,663.78x = 15,995.67 × 3,268.21
  4. Step 4: Simplify right side
    10,663.78x = 52,277,208.65
  5. Step 5: Solve for x
    x = 52,277,208.65/10,663.78
  6. Step 6: Final answer
    x = 4,902.32

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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.