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Finding the Fourth Proportional to 12,269.80, 17,022.19 and 11,751.40

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Solution

The fourth proportional to 12,269.80, 17,022.19 and 11,751.40 is: 16,303.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.80 : 17,022.19 = 11,751.40 : x
  2. Step 2: Convert to fraction form
    12,269.80/17,022.19 = 11,751.40/x
  3. Step 3: Cross multiply
    12,269.80x = 17,022.19 × 11,751.40
  4. Step 4: Simplify right side
    12,269.80x = 200,034,563.57
  5. Step 5: Solve for x
    x = 200,034,563.57/12,269.80
  6. Step 6: Final answer
    x = 16,303.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.