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Finding the Fourth Proportional to 14,675.20, 22,012.80 and 12,493.60

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Solution

The fourth proportional to 14,675.20, 22,012.80 and 12,493.60 is: 18,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,675.20 : 22,012.80 = 12,493.60 : x
  2. Step 2: Convert to fraction form
    14,675.20/22,012.80 = 12,493.60/x
  3. Step 3: Cross multiply
    14,675.20x = 22,012.80 × 12,493.60
  4. Step 4: Simplify right side
    14,675.20x = 275,019,118.08
  5. Step 5: Solve for x
    x = 275,019,118.08/14,675.20
  6. Step 6: Final answer
    x = 18,740.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.