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Finding the Fourth Proportional to 14.10, 21.04 and 12.10

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Solution

The fourth proportional to 14.10, 21.04 and 12.10 is: 18.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.10 : 21.04 = 12.10 : x
  2. Step 2: Convert to fraction form
    14.10/21.04 = 12.10/x
  3. Step 3: Cross multiply
    14.10x = 21.04 × 12.10
  4. Step 4: Simplify right side
    14.10x = 254.58
  5. Step 5: Solve for x
    x = 254.58/14.10
  6. Step 6: Final answer
    x = 18.06

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.