Home / 12,078.51-18,115.67-3,193.93

Finding the Fourth Proportional to 12,078.51, 18,115.67 and 3,193.93

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Solution

The fourth proportional to 12,078.51, 18,115.67 and 3,193.93 is: 4,790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.51 : 18,115.67 = 3,193.93 : x
  2. Step 2: Convert to fraction form
    12,078.51/18,115.67 = 3,193.93/x
  3. Step 3: Cross multiply
    12,078.51x = 18,115.67 × 3,193.93
  4. Step 4: Simplify right side
    12,078.51x = 57,860,165.91
  5. Step 5: Solve for x
    x = 57,860,165.91/12,078.51
  6. Step 6: Final answer
    x = 4,790.34

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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.