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Finding the Fourth Proportional to 10,289.79, 14,200.79 and 8,608.23

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Solution

The fourth proportional to 10,289.79, 14,200.79 and 8,608.23 is: 11,880.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.79 : 14,200.79 = 8,608.23 : x
  2. Step 2: Convert to fraction form
    10,289.79/14,200.79 = 8,608.23/x
  3. Step 3: Cross multiply
    10,289.79x = 14,200.79 × 8,608.23
  4. Step 4: Simplify right side
    10,289.79x = 122,243,623.46
  5. Step 5: Solve for x
    x = 122,243,623.46/10,289.79
  6. Step 6: Final answer
    x = 11,880.09

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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.