Home / 12,120.14-18,185.70-6,193.38

Finding the Fourth Proportional to 12,120.14, 18,185.70 and 6,193.38

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Solution

The fourth proportional to 12,120.14, 18,185.70 and 6,193.38 is: 9,292.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120.14 : 18,185.70 = 6,193.38 : x
  2. Step 2: Convert to fraction form
    12,120.14/18,185.70 = 6,193.38/x
  3. Step 3: Cross multiply
    12,120.14x = 18,185.70 × 6,193.38
  4. Step 4: Simplify right side
    12,120.14x = 112,630,950.67
  5. Step 5: Solve for x
    x = 112,630,950.67/12,120.14
  6. Step 6: Final answer
    x = 9,292.88

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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.