Home / 7,941.76-11,918.10-3,564.12

Finding the Fourth Proportional to 7,941.76, 11,918.10 and 3,564.12

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Solution

The fourth proportional to 7,941.76, 11,918.10 and 3,564.12 is: 5,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.76 : 11,918.10 = 3,564.12 : x
  2. Step 2: Convert to fraction form
    7,941.76/11,918.10 = 3,564.12/x
  3. Step 3: Cross multiply
    7,941.76x = 11,918.10 × 3,564.12
  4. Step 4: Simplify right side
    7,941.76x = 42,477,538.57
  5. Step 5: Solve for x
    x = 42,477,538.57/7,941.76
  6. Step 6: Final answer
    x = 5,348.63

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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.