Home / 12,091.64-18,139.78-4,193.85

Finding the Fourth Proportional to 12,091.64, 18,139.78 and 4,193.85

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Solution

The fourth proportional to 12,091.64, 18,139.78 and 4,193.85 is: 6,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.64 : 18,139.78 = 4,193.85 : x
  2. Step 2: Convert to fraction form
    12,091.64/18,139.78 = 4,193.85/x
  3. Step 3: Cross multiply
    12,091.64x = 18,139.78 × 4,193.85
  4. Step 4: Simplify right side
    12,091.64x = 76,075,516.35
  5. Step 5: Solve for x
    x = 76,075,516.35/12,091.64
  6. Step 6: Final answer
    x = 6,291.58

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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.