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Finding the Fourth Proportional to 14,353, 21,452.49 and 12,944.20

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Solution

The fourth proportional to 14,353, 21,452.49 and 12,944.20 is: 19,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353 : 21,452.49 = 12,944.20 : x
  2. Step 2: Convert to fraction form
    14,353/21,452.49 = 12,944.20/x
  3. Step 3: Cross multiply
    14,353x = 21,452.49 × 12,944.20
  4. Step 4: Simplify right side
    14,353x = 277,685,321.06
  5. Step 5: Solve for x
    x = 277,685,321.06/14,353
  6. Step 6: Final answer
    x = 19,346.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.