Home / 12,269.86-18,405.40-3,506.08

Finding the Fourth Proportional to 12,269.86, 18,405.40 and 3,506.08

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Solution

The fourth proportional to 12,269.86, 18,405.40 and 3,506.08 is: 5,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.86 : 18,405.40 = 3,506.08 : x
  2. Step 2: Convert to fraction form
    12,269.86/18,405.40 = 3,506.08/x
  3. Step 3: Cross multiply
    12,269.86x = 18,405.40 × 3,506.08
  4. Step 4: Simplify right side
    12,269.86x = 64,530,804.83
  5. Step 5: Solve for x
    x = 64,530,804.83/12,269.86
  6. Step 6: Final answer
    x = 5,259.29

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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.