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Finding the Fourth Proportional to 14,150.60, 21,225.90 and 12,206.60

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Solution

The fourth proportional to 14,150.60, 21,225.90 and 12,206.60 is: 18,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,150.60 : 21,225.90 = 12,206.60 : x
  2. Step 2: Convert to fraction form
    14,150.60/21,225.90 = 12,206.60/x
  3. Step 3: Cross multiply
    14,150.60x = 21,225.90 × 12,206.60
  4. Step 4: Simplify right side
    14,150.60x = 259,096,070.94
  5. Step 5: Solve for x
    x = 259,096,070.94/14,150.60
  6. Step 6: Final answer
    x = 18,309.90

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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.