Home / 13,855.02-20,782.56-3,466.80

Finding the Fourth Proportional to 13,855.02, 20,782.56 and 3,466.80

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Solution

The fourth proportional to 13,855.02, 20,782.56 and 3,466.80 is: 5,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.02 : 20,782.56 = 3,466.80 : x
  2. Step 2: Convert to fraction form
    13,855.02/20,782.56 = 3,466.80/x
  3. Step 3: Cross multiply
    13,855.02x = 20,782.56 × 3,466.80
  4. Step 4: Simplify right side
    13,855.02x = 72,048,979.01
  5. Step 5: Solve for x
    x = 72,048,979.01/13,855.02
  6. Step 6: Final answer
    x = 5,200.21

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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.