Home / 7,981.97-11,973.76-3,055.75

Finding the Fourth Proportional to 7,981.97, 11,973.76 and 3,055.75

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Solution

The fourth proportional to 7,981.97, 11,973.76 and 3,055.75 is: 4,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.97 : 11,973.76 = 3,055.75 : x
  2. Step 2: Convert to fraction form
    7,981.97/11,973.76 = 3,055.75/x
  3. Step 3: Cross multiply
    7,981.97x = 11,973.76 × 3,055.75
  4. Step 4: Simplify right side
    7,981.97x = 36,588,779.55
  5. Step 5: Solve for x
    x = 36,588,779.55/7,981.97
  6. Step 6: Final answer
    x = 4,583.93

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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.