Home / 7,943.96-11,916.03-2,100.51

Finding the Fourth Proportional to 7,943.96, 11,916.03 and 2,100.51

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Solution

The fourth proportional to 7,943.96, 11,916.03 and 2,100.51 is: 3,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.96 : 11,916.03 = 2,100.51 : x
  2. Step 2: Convert to fraction form
    7,943.96/11,916.03 = 2,100.51/x
  3. Step 3: Cross multiply
    7,943.96x = 11,916.03 × 2,100.51
  4. Step 4: Simplify right side
    7,943.96x = 25,029,740.18
  5. Step 5: Solve for x
    x = 25,029,740.18/7,943.96
  6. Step 6: Final answer
    x = 3,150.79

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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.