Home / 7,881.18-11,821.81-2,334.63

Finding the Fourth Proportional to 7,881.18, 11,821.81 and 2,334.63

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Solution

The fourth proportional to 7,881.18, 11,821.81 and 2,334.63 is: 3,501.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.18 : 11,821.81 = 2,334.63 : x
  2. Step 2: Convert to fraction form
    7,881.18/11,821.81 = 2,334.63/x
  3. Step 3: Cross multiply
    7,881.18x = 11,821.81 × 2,334.63
  4. Step 4: Simplify right side
    7,881.18x = 27,599,552.28
  5. Step 5: Solve for x
    x = 27,599,552.28/7,881.18
  6. Step 6: Final answer
    x = 3,501.96

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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.