Home / 8,438.14-12,660.40-3,507.37

Finding the Fourth Proportional to 8,438.14, 12,660.40 and 3,507.37

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Solution

The fourth proportional to 8,438.14, 12,660.40 and 3,507.37 is: 5,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.14 : 12,660.40 = 3,507.37 : x
  2. Step 2: Convert to fraction form
    8,438.14/12,660.40 = 3,507.37/x
  3. Step 3: Cross multiply
    8,438.14x = 12,660.40 × 3,507.37
  4. Step 4: Simplify right side
    8,438.14x = 44,404,643.85
  5. Step 5: Solve for x
    x = 44,404,643.85/8,438.14
  6. Step 6: Final answer
    x = 5,262.37

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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.