Home / 19,748.42-27,268.53-12,205.70

Finding the Fourth Proportional to 19,748.42, 27,268.53 and 12,205.70

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Solution

The fourth proportional to 19,748.42, 27,268.53 and 12,205.70 is: 16,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,748.42 : 27,268.53 = 12,205.70 : x
  2. Step 2: Convert to fraction form
    19,748.42/27,268.53 = 12,205.70/x
  3. Step 3: Cross multiply
    19,748.42x = 27,268.53 × 12,205.70
  4. Step 4: Simplify right side
    19,748.42x = 332,831,496.62
  5. Step 5: Solve for x
    x = 332,831,496.62/19,748.42
  6. Step 6: Final answer
    x = 16,853.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.