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Finding the Fourth Proportional to 14,355.88, 21,529.98 and 3,968.20

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Solution

The fourth proportional to 14,355.88, 21,529.98 and 3,968.20 is: 5,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.88 : 21,529.98 = 3,968.20 : x
  2. Step 2: Convert to fraction form
    14,355.88/21,529.98 = 3,968.20/x
  3. Step 3: Cross multiply
    14,355.88x = 21,529.98 × 3,968.20
  4. Step 4: Simplify right side
    14,355.88x = 85,435,266.64
  5. Step 5: Solve for x
    x = 85,435,266.64/14,355.88
  6. Step 6: Final answer
    x = 5,951.24

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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.