Home / 19,040.04-26,285.20-11,872.12

Finding the Fourth Proportional to 19,040.04, 26,285.20 and 11,872.12

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Solution

The fourth proportional to 19,040.04, 26,285.20 and 11,872.12 is: 16,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.04 : 26,285.20 = 11,872.12 : x
  2. Step 2: Convert to fraction form
    19,040.04/26,285.20 = 11,872.12/x
  3. Step 3: Cross multiply
    19,040.04x = 26,285.20 × 11,872.12
  4. Step 4: Simplify right side
    19,040.04x = 312,061,048.62
  5. Step 5: Solve for x
    x = 312,061,048.62/19,040.04
  6. Step 6: Final answer
    x = 16,389.73

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Half scale
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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.