Home / 7,909.14-11,855.46-3,529.68

Finding the Fourth Proportional to 7,909.14, 11,855.46 and 3,529.68

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Solution

The fourth proportional to 7,909.14, 11,855.46 and 3,529.68 is: 5,290.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.14 : 11,855.46 = 3,529.68 : x
  2. Step 2: Convert to fraction form
    7,909.14/11,855.46 = 3,529.68/x
  3. Step 3: Cross multiply
    7,909.14x = 11,855.46 × 3,529.68
  4. Step 4: Simplify right side
    7,909.14x = 41,845,980.05
  5. Step 5: Solve for x
    x = 41,845,980.05/7,909.14
  6. Step 6: Final answer
    x = 5,290.84

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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.