Home / 8,900.40-13,352.94-2,660.42

Finding the Fourth Proportional to 8,900.40, 13,352.94 and 2,660.42

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Solution

The fourth proportional to 8,900.40, 13,352.94 and 2,660.42 is: 3,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.40 : 13,352.94 = 2,660.42 : x
  2. Step 2: Convert to fraction form
    8,900.40/13,352.94 = 2,660.42/x
  3. Step 3: Cross multiply
    8,900.40x = 13,352.94 × 2,660.42
  4. Step 4: Simplify right side
    8,900.40x = 35,524,428.63
  5. Step 5: Solve for x
    x = 35,524,428.63/8,900.40
  6. Step 6: Final answer
    x = 3,991.33

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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.