Home / 11,810.60-16,299.79-8,821.25

Finding the Fourth Proportional to 11,810.60, 16,299.79 and 8,821.25

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Solution

The fourth proportional to 11,810.60, 16,299.79 and 8,821.25 is: 12,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.60 : 16,299.79 = 8,821.25 : x
  2. Step 2: Convert to fraction form
    11,810.60/16,299.79 = 8,821.25/x
  3. Step 3: Cross multiply
    11,810.60x = 16,299.79 × 8,821.25
  4. Step 4: Simplify right side
    11,810.60x = 143,784,522.54
  5. Step 5: Solve for x
    x = 143,784,522.54/11,810.60
  6. Step 6: Final answer
    x = 12,174.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.