Home / 8,685.43-13,028.14-3,491.30

Finding the Fourth Proportional to 8,685.43, 13,028.14 and 3,491.30

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Solution

The fourth proportional to 8,685.43, 13,028.14 and 3,491.30 is: 5,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.43 : 13,028.14 = 3,491.30 : x
  2. Step 2: Convert to fraction form
    8,685.43/13,028.14 = 3,491.30/x
  3. Step 3: Cross multiply
    8,685.43x = 13,028.14 × 3,491.30
  4. Step 4: Simplify right side
    8,685.43x = 45,485,182.12
  5. Step 5: Solve for x
    x = 45,485,182.12/8,685.43
  6. Step 6: Final answer
    x = 5,236.95

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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.