Home / 13,704.04-20,554.44-5,390.20

Finding the Fourth Proportional to 13,704.04, 20,554.44 and 5,390.20

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Solution

The fourth proportional to 13,704.04, 20,554.44 and 5,390.20 is: 8,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.04 : 20,554.44 = 5,390.20 : x
  2. Step 2: Convert to fraction form
    13,704.04/20,554.44 = 5,390.20/x
  3. Step 3: Cross multiply
    13,704.04x = 20,554.44 × 5,390.20
  4. Step 4: Simplify right side
    13,704.04x = 110,792,542.49
  5. Step 5: Solve for x
    x = 110,792,542.49/13,704.04
  6. Step 6: Final answer
    x = 8,084.66

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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.