Home / 7,771.09-10,726.12-4,789.38

Finding the Fourth Proportional to 7,771.09, 10,726.12 and 4,789.38

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Solution

The fourth proportional to 7,771.09, 10,726.12 and 4,789.38 is: 6,610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.09 : 10,726.12 = 4,789.38 : x
  2. Step 2: Convert to fraction form
    7,771.09/10,726.12 = 4,789.38/x
  3. Step 3: Cross multiply
    7,771.09x = 10,726.12 × 4,789.38
  4. Step 4: Simplify right side
    7,771.09x = 51,371,450.48
  5. Step 5: Solve for x
    x = 51,371,450.48/7,771.09
  6. Step 6: Final answer
    x = 6,610.59

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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.