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Finding the Fourth Proportional to 14,453.52, 21,662.52 and 8,218.74

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Solution

The fourth proportional to 14,453.52, 21,662.52 and 8,218.74 is: 12,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.52 : 21,662.52 = 8,218.74 : x
  2. Step 2: Convert to fraction form
    14,453.52/21,662.52 = 8,218.74/x
  3. Step 3: Cross multiply
    14,453.52x = 21,662.52 × 8,218.74
  4. Step 4: Simplify right side
    14,453.52x = 178,038,673.78
  5. Step 5: Solve for x
    x = 178,038,673.78/14,453.52
  6. Step 6: Final answer
    x = 12,318.02

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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.