Home / 12,374.56-18,561.53-3,609.55

Finding the Fourth Proportional to 12,374.56, 18,561.53 and 3,609.55

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Solution

The fourth proportional to 12,374.56, 18,561.53 and 3,609.55 is: 5,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.56 : 18,561.53 = 3,609.55 : x
  2. Step 2: Convert to fraction form
    12,374.56/18,561.53 = 3,609.55/x
  3. Step 3: Cross multiply
    12,374.56x = 18,561.53 × 3,609.55
  4. Step 4: Simplify right side
    12,374.56x = 66,998,752.56
  5. Step 5: Solve for x
    x = 66,998,752.56/12,374.56
  6. Step 6: Final answer
    x = 5,414.23

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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.