Home / 13,485.24-20,228.82-4,251

Finding the Fourth Proportional to 13,485.24, 20,228.82 and 4,251

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Solution

The fourth proportional to 13,485.24, 20,228.82 and 4,251 is: 6,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.24 : 20,228.82 = 4,251 : x
  2. Step 2: Convert to fraction form
    13,485.24/20,228.82 = 4,251/x
  3. Step 3: Cross multiply
    13,485.24x = 20,228.82 × 4,251
  4. Step 4: Simplify right side
    13,485.24x = 85,992,713.82
  5. Step 5: Solve for x
    x = 85,992,713.82/13,485.24
  6. Step 6: Final answer
    x = 6,376.80

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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.