Home / 7,826.90-11,740.75-1,983.56

Finding the Fourth Proportional to 7,826.90, 11,740.75 and 1,983.56

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Solution

The fourth proportional to 7,826.90, 11,740.75 and 1,983.56 is: 2,975.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.90 : 11,740.75 = 1,983.56 : x
  2. Step 2: Convert to fraction form
    7,826.90/11,740.75 = 1,983.56/x
  3. Step 3: Cross multiply
    7,826.90x = 11,740.75 × 1,983.56
  4. Step 4: Simplify right side
    7,826.90x = 23,288,418.41
  5. Step 5: Solve for x
    x = 23,288,418.41/7,826.90
  6. Step 6: Final answer
    x = 2,975.44

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1.5x scale

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.