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Finding the Fourth Proportional to 14,486.90, 19,914.99 and 12,462.89

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Solution

The fourth proportional to 14,486.90, 19,914.99 and 12,462.89 is: 17,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.90 : 19,914.99 = 12,462.89 : x
  2. Step 2: Convert to fraction form
    14,486.90/19,914.99 = 12,462.89/x
  3. Step 3: Cross multiply
    14,486.90x = 19,914.99 × 12,462.89
  4. Step 4: Simplify right side
    14,486.90x = 248,198,183.41
  5. Step 5: Solve for x
    x = 248,198,183.41/14,486.90
  6. Step 6: Final answer
    x = 17,132.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.