Home / 18,271.21-25,189.32-13,667.73

Finding the Fourth Proportional to 18,271.21, 25,189.32 and 13,667.73

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Solution

The fourth proportional to 18,271.21, 25,189.32 and 13,667.73 is: 18,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.21 : 25,189.32 = 13,667.73 : x
  2. Step 2: Convert to fraction form
    18,271.21/25,189.32 = 13,667.73/x
  3. Step 3: Cross multiply
    18,271.21x = 25,189.32 × 13,667.73
  4. Step 4: Simplify right side
    18,271.21x = 344,280,824.64
  5. Step 5: Solve for x
    x = 344,280,824.64/18,271.21
  6. Step 6: Final answer
    x = 18,842.80

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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.