Home / 7,845.22-11,769.75-3,898.33

Finding the Fourth Proportional to 7,845.22, 11,769.75 and 3,898.33

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Solution

The fourth proportional to 7,845.22, 11,769.75 and 3,898.33 is: 5,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.22 : 11,769.75 = 3,898.33 : x
  2. Step 2: Convert to fraction form
    7,845.22/11,769.75 = 3,898.33/x
  3. Step 3: Cross multiply
    7,845.22x = 11,769.75 × 3,898.33
  4. Step 4: Simplify right side
    7,845.22x = 45,882,369.52
  5. Step 5: Solve for x
    x = 45,882,369.52/7,845.22
  6. Step 6: Final answer
    x = 5,848.45

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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.