Home / 12,065.85-18,087.43-6,220.89

Finding the Fourth Proportional to 12,065.85, 18,087.43 and 6,220.89

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Solution

The fourth proportional to 12,065.85, 18,087.43 and 6,220.89 is: 9,325.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.85 : 18,087.43 = 6,220.89 : x
  2. Step 2: Convert to fraction form
    12,065.85/18,087.43 = 6,220.89/x
  3. Step 3: Cross multiply
    12,065.85x = 18,087.43 × 6,220.89
  4. Step 4: Simplify right side
    12,065.85x = 112,519,912.41
  5. Step 5: Solve for x
    x = 112,519,912.41/12,065.85
  6. Step 6: Final answer
    x = 9,325.49

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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.