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Finding the Fourth Proportional to 14,000.41, 20,980.95 and 11,912.14

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Solution

The fourth proportional to 14,000.41, 20,980.95 and 11,912.14 is: 17,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.41 : 20,980.95 = 11,912.14 : x
  2. Step 2: Convert to fraction form
    14,000.41/20,980.95 = 11,912.14/x
  3. Step 3: Cross multiply
    14,000.41x = 20,980.95 × 11,912.14
  4. Step 4: Simplify right side
    14,000.41x = 249,928,013.73
  5. Step 5: Solve for x
    x = 249,928,013.73/14,000.41
  6. Step 6: Final answer
    x = 17,851.48

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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.