Home / 8,133.76-12,200.64-2,290.37

Finding the Fourth Proportional to 8,133.76, 12,200.64 and 2,290.37

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Solution

The fourth proportional to 8,133.76, 12,200.64 and 2,290.37 is: 3,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.76 : 12,200.64 = 2,290.37 : x
  2. Step 2: Convert to fraction form
    8,133.76/12,200.64 = 2,290.37/x
  3. Step 3: Cross multiply
    8,133.76x = 12,200.64 × 2,290.37
  4. Step 4: Simplify right side
    8,133.76x = 27,943,979.84
  5. Step 5: Solve for x
    x = 27,943,979.84/8,133.76
  6. Step 6: Final answer
    x = 3,435.56

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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.