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Finding the Fourth Proportional to 14,212.17, 21,323.70 and 5,447.70

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Solution

The fourth proportional to 14,212.17, 21,323.70 and 5,447.70 is: 8,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.17 : 21,323.70 = 5,447.70 : x
  2. Step 2: Convert to fraction form
    14,212.17/21,323.70 = 5,447.70/x
  3. Step 3: Cross multiply
    14,212.17x = 21,323.70 × 5,447.70
  4. Step 4: Simplify right side
    14,212.17x = 116,165,120.49
  5. Step 5: Solve for x
    x = 116,165,120.49/14,212.17
  6. Step 6: Final answer
    x = 8,173.64

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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.