Home / 13,698.49-20,533.80-8,704.54

Finding the Fourth Proportional to 13,698.49, 20,533.80 and 8,704.54

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Solution

The fourth proportional to 13,698.49, 20,533.80 and 8,704.54 is: 13,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.49 : 20,533.80 = 8,704.54 : x
  2. Step 2: Convert to fraction form
    13,698.49/20,533.80 = 8,704.54/x
  3. Step 3: Cross multiply
    13,698.49x = 20,533.80 × 8,704.54
  4. Step 4: Simplify right side
    13,698.49x = 178,737,283.45
  5. Step 5: Solve for x
    x = 178,737,283.45/13,698.49
  6. Step 6: Final answer
    x = 13,047.96

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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.