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Finding the Fourth Proportional to 14,668.54, 20,245.89 and 12,306.58

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Solution

The fourth proportional to 14,668.54, 20,245.89 and 12,306.58 is: 16,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,668.54 : 20,245.89 = 12,306.58 : x
  2. Step 2: Convert to fraction form
    14,668.54/20,245.89 = 12,306.58/x
  3. Step 3: Cross multiply
    14,668.54x = 20,245.89 × 12,306.58
  4. Step 4: Simplify right side
    14,668.54x = 249,157,664.96
  5. Step 5: Solve for x
    x = 249,157,664.96/14,668.54
  6. Step 6: Final answer
    x = 16,985.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.