Home / 7,638.36-11,455.38-2,443.56

Finding the Fourth Proportional to 7,638.36, 11,455.38 and 2,443.56

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Solution

The fourth proportional to 7,638.36, 11,455.38 and 2,443.56 is: 3,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.36 : 11,455.38 = 2,443.56 : x
  2. Step 2: Convert to fraction form
    7,638.36/11,455.38 = 2,443.56/x
  3. Step 3: Cross multiply
    7,638.36x = 11,455.38 × 2,443.56
  4. Step 4: Simplify right side
    7,638.36x = 27,991,908.35
  5. Step 5: Solve for x
    x = 27,991,908.35/7,638.36
  6. Step 6: Final answer
    x = 3,664.65

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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.