Home / 8,130.67-12,193.60-3,450.62

Finding the Fourth Proportional to 8,130.67, 12,193.60 and 3,450.62

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Solution

The fourth proportional to 8,130.67, 12,193.60 and 3,450.62 is: 5,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.67 : 12,193.60 = 3,450.62 : x
  2. Step 2: Convert to fraction form
    8,130.67/12,193.60 = 3,450.62/x
  3. Step 3: Cross multiply
    8,130.67x = 12,193.60 × 3,450.62
  4. Step 4: Simplify right side
    8,130.67x = 42,075,480.03
  5. Step 5: Solve for x
    x = 42,075,480.03/8,130.67
  6. Step 6: Final answer
    x = 5,174.91

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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.