Home / 12,269.60-18,405.04-3,505.84

Finding the Fourth Proportional to 12,269.60, 18,405.04 and 3,505.84

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Solution

The fourth proportional to 12,269.60, 18,405.04 and 3,505.84 is: 5,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.60 : 18,405.04 = 3,505.84 : x
  2. Step 2: Convert to fraction form
    12,269.60/18,405.04 = 3,505.84/x
  3. Step 3: Cross multiply
    12,269.60x = 18,405.04 × 3,505.84
  4. Step 4: Simplify right side
    12,269.60x = 64,525,125.43
  5. Step 5: Solve for x
    x = 64,525,125.43/12,269.60
  6. Step 6: Final answer
    x = 5,258.94

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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.