Home / 8,190.24-12,287.43-3,507.90

Finding the Fourth Proportional to 8,190.24, 12,287.43 and 3,507.90

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Solution

The fourth proportional to 8,190.24, 12,287.43 and 3,507.90 is: 5,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.24 : 12,287.43 = 3,507.90 : x
  2. Step 2: Convert to fraction form
    8,190.24/12,287.43 = 3,507.90/x
  3. Step 3: Cross multiply
    8,190.24x = 12,287.43 × 3,507.90
  4. Step 4: Simplify right side
    8,190.24x = 43,103,075.70
  5. Step 5: Solve for x
    x = 43,103,075.70/8,190.24
  6. Step 6: Final answer
    x = 5,262.74

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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.