Home / 12,101.82-18,140.49-4,701.66

Finding the Fourth Proportional to 12,101.82, 18,140.49 and 4,701.66

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Solution

The fourth proportional to 12,101.82, 18,140.49 and 4,701.66 is: 7,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.82 : 18,140.49 = 4,701.66 : x
  2. Step 2: Convert to fraction form
    12,101.82/18,140.49 = 4,701.66/x
  3. Step 3: Cross multiply
    12,101.82x = 18,140.49 × 4,701.66
  4. Step 4: Simplify right side
    12,101.82x = 85,290,416.21
  5. Step 5: Solve for x
    x = 85,290,416.21/12,101.82
  6. Step 6: Final answer
    x = 7,047.73

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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.