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Finding the Fourth Proportional to 12,926.40, 19,366.56 and 8,802.24

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Solution

The fourth proportional to 12,926.40, 19,366.56 and 8,802.24 is: 13,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.40 : 19,366.56 = 8,802.24 : x
  2. Step 2: Convert to fraction form
    12,926.40/19,366.56 = 8,802.24/x
  3. Step 3: Cross multiply
    12,926.40x = 19,366.56 × 8,802.24
  4. Step 4: Simplify right side
    12,926.40x = 170,469,109.09
  5. Step 5: Solve for x
    x = 170,469,109.09/12,926.40
  6. Step 6: Final answer
    x = 13,187.67

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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.