Home / 12,453.38-18,681.15-3,568.75

Finding the Fourth Proportional to 12,453.38, 18,681.15 and 3,568.75

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Solution

The fourth proportional to 12,453.38, 18,681.15 and 3,568.75 is: 5,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.38 : 18,681.15 = 3,568.75 : x
  2. Step 2: Convert to fraction form
    12,453.38/18,681.15 = 3,568.75/x
  3. Step 3: Cross multiply
    12,453.38x = 18,681.15 × 3,568.75
  4. Step 4: Simplify right side
    12,453.38x = 66,668,300.67
  5. Step 5: Solve for x
    x = 66,668,300.67/12,453.38
  6. Step 6: Final answer
    x = 5,353.43

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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.