Home / 7,913.75-11,870.73-2,070.36

Finding the Fourth Proportional to 7,913.75, 11,870.73 and 2,070.36

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Solution

The fourth proportional to 7,913.75, 11,870.73 and 2,070.36 is: 3,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.75 : 11,870.73 = 2,070.36 : x
  2. Step 2: Convert to fraction form
    7,913.75/11,870.73 = 2,070.36/x
  3. Step 3: Cross multiply
    7,913.75x = 11,870.73 × 2,070.36
  4. Step 4: Simplify right side
    7,913.75x = 24,576,684.56
  5. Step 5: Solve for x
    x = 24,576,684.56/7,913.75
  6. Step 6: Final answer
    x = 3,105.57

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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.