Home / 14,143.01-21,220.65-5,380.43

Finding the Fourth Proportional to 14,143.01, 21,220.65 and 5,380.43

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Solution

The fourth proportional to 14,143.01, 21,220.65 and 5,380.43 is: 8,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.01 : 21,220.65 = 5,380.43 : x
  2. Step 2: Convert to fraction form
    14,143.01/21,220.65 = 5,380.43/x
  3. Step 3: Cross multiply
    14,143.01x = 21,220.65 × 5,380.43
  4. Step 4: Simplify right side
    14,143.01x = 114,176,115.78
  5. Step 5: Solve for x
    x = 114,176,115.78/14,143.01
  6. Step 6: Final answer
    x = 8,072.97

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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.