Home / 12,453.40-18,682.40-3,568.35

Finding the Fourth Proportional to 12,453.40, 18,682.40 and 3,568.35

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Solution

The fourth proportional to 12,453.40, 18,682.40 and 3,568.35 is: 5,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.40 : 18,682.40 = 3,568.35 : x
  2. Step 2: Convert to fraction form
    12,453.40/18,682.40 = 3,568.35/x
  3. Step 3: Cross multiply
    12,453.40x = 18,682.40 × 3,568.35
  4. Step 4: Simplify right side
    12,453.40x = 66,665,342.04
  5. Step 5: Solve for x
    x = 66,665,342.04/12,453.40
  6. Step 6: Final answer
    x = 5,353.18

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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.