Home / 14,144.03-21,218.78-5,378.26

Finding the Fourth Proportional to 14,144.03, 21,218.78 and 5,378.26

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Solution

The fourth proportional to 14,144.03, 21,218.78 and 5,378.26 is: 8,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.03 : 21,218.78 = 5,378.26 : x
  2. Step 2: Convert to fraction form
    14,144.03/21,218.78 = 5,378.26/x
  3. Step 3: Cross multiply
    14,144.03x = 21,218.78 × 5,378.26
  4. Step 4: Simplify right side
    14,144.03x = 114,120,115.72
  5. Step 5: Solve for x
    x = 114,120,115.72/14,144.03
  6. Step 6: Final answer
    x = 8,068.43

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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.