Home / 14,138.20-21,164.10-11,027.80

Finding the Fourth Proportional to 14,138.20, 21,164.10 and 11,027.80

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Solution

The fourth proportional to 14,138.20, 21,164.10 and 11,027.80 is: 16,508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.20 : 21,164.10 = 11,027.80 : x
  2. Step 2: Convert to fraction form
    14,138.20/21,164.10 = 11,027.80/x
  3. Step 3: Cross multiply
    14,138.20x = 21,164.10 × 11,027.80
  4. Step 4: Simplify right side
    14,138.20x = 233,393,461.98
  5. Step 5: Solve for x
    x = 233,393,461.98/14,138.20
  6. Step 6: Final answer
    x = 16,508.00

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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.