Home / 19,803.70-27,329.10-11,847.79

Finding the Fourth Proportional to 19,803.70, 27,329.10 and 11,847.79

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Solution

The fourth proportional to 19,803.70, 27,329.10 and 11,847.79 is: 16,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.70 : 27,329.10 = 11,847.79 : x
  2. Step 2: Convert to fraction form
    19,803.70/27,329.10 = 11,847.79/x
  3. Step 3: Cross multiply
    19,803.70x = 27,329.10 × 11,847.79
  4. Step 4: Simplify right side
    19,803.70x = 323,789,378.45
  5. Step 5: Solve for x
    x = 323,789,378.45/19,803.70
  6. Step 6: Final answer
    x = 16,349.95

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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.