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Finding the Fourth Proportional to 11,463.80, 17,195.70 and 8,871.80

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Solution

The fourth proportional to 11,463.80, 17,195.70 and 8,871.80 is: 13,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,463.80 : 17,195.70 = 8,871.80 : x
  2. Step 2: Convert to fraction form
    11,463.80/17,195.70 = 8,871.80/x
  3. Step 3: Cross multiply
    11,463.80x = 17,195.70 × 8,871.80
  4. Step 4: Simplify right side
    11,463.80x = 152,556,811.26
  5. Step 5: Solve for x
    x = 152,556,811.26/11,463.80
  6. Step 6: Final answer
    x = 13,307.70

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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.