Home / 14,266.88-21,400.26-3,878.60

Finding the Fourth Proportional to 14,266.88, 21,400.26 and 3,878.60

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Solution

The fourth proportional to 14,266.88, 21,400.26 and 3,878.60 is: 5,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.88 : 21,400.26 = 3,878.60 : x
  2. Step 2: Convert to fraction form
    14,266.88/21,400.26 = 3,878.60/x
  3. Step 3: Cross multiply
    14,266.88x = 21,400.26 × 3,878.60
  4. Step 4: Simplify right side
    14,266.88x = 83,003,048.44
  5. Step 5: Solve for x
    x = 83,003,048.44/14,266.88
  6. Step 6: Final answer
    x = 5,817.88

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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.