Home / 12,185.15-18,283.39-6,631.89

Finding the Fourth Proportional to 12,185.15, 18,283.39 and 6,631.89

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Solution

The fourth proportional to 12,185.15, 18,283.39 and 6,631.89 is: 9,950.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.15 : 18,283.39 = 6,631.89 : x
  2. Step 2: Convert to fraction form
    12,185.15/18,283.39 = 6,631.89/x
  3. Step 3: Cross multiply
    12,185.15x = 18,283.39 × 6,631.89
  4. Step 4: Simplify right side
    12,185.15x = 121,253,431.31
  5. Step 5: Solve for x
    x = 121,253,431.31/12,185.15
  6. Step 6: Final answer
    x = 9,950.92

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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.