Home / 13,544.89-20,306.40-12,451.39

Finding the Fourth Proportional to 13,544.89, 20,306.40 and 12,451.39

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Solution

The fourth proportional to 13,544.89, 20,306.40 and 12,451.39 is: 18,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.89 : 20,306.40 = 12,451.39 : x
  2. Step 2: Convert to fraction form
    13,544.89/20,306.40 = 12,451.39/x
  3. Step 3: Cross multiply
    13,544.89x = 20,306.40 × 12,451.39
  4. Step 4: Simplify right side
    13,544.89x = 252,842,808.44
  5. Step 5: Solve for x
    x = 252,842,808.44/13,544.89
  6. Step 6: Final answer
    x = 18,667.03

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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.