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Finding the Fourth Proportional to 14,658.60, 21,995.10 and 11,147.40

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Solution

The fourth proportional to 14,658.60, 21,995.10 and 11,147.40 is: 16,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.60 : 21,995.10 = 11,147.40 : x
  2. Step 2: Convert to fraction form
    14,658.60/21,995.10 = 11,147.40/x
  3. Step 3: Cross multiply
    14,658.60x = 21,995.10 × 11,147.40
  4. Step 4: Simplify right side
    14,658.60x = 245,188,177.74
  5. Step 5: Solve for x
    x = 245,188,177.74/14,658.60
  6. Step 6: Final answer
    x = 16,726.58

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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.