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Finding the Fourth Proportional to 10,769, 16,153.50 and 2,871.54

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Solution

The fourth proportional to 10,769, 16,153.50 and 2,871.54 is: 4,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769 : 16,153.50 = 2,871.54 : x
  2. Step 2: Convert to fraction form
    10,769/16,153.50 = 2,871.54/x
  3. Step 3: Cross multiply
    10,769x = 16,153.50 × 2,871.54
  4. Step 4: Simplify right side
    10,769x = 46,385,421.39
  5. Step 5: Solve for x
    x = 46,385,421.39/10,769
  6. Step 6: Final answer
    x = 4,307.31

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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.