Home / 12,199.74-18,297.96-3,435.40

Finding the Fourth Proportional to 12,199.74, 18,297.96 and 3,435.40

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Solution

The fourth proportional to 12,199.74, 18,297.96 and 3,435.40 is: 5,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.74 : 18,297.96 = 3,435.40 : x
  2. Step 2: Convert to fraction form
    12,199.74/18,297.96 = 3,435.40/x
  3. Step 3: Cross multiply
    12,199.74x = 18,297.96 × 3,435.40
  4. Step 4: Simplify right side
    12,199.74x = 62,860,811.78
  5. Step 5: Solve for x
    x = 62,860,811.78/12,199.74
  6. Step 6: Final answer
    x = 5,152.64

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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.