Home / 19,816.57-27,347.18-11,859.13

Finding the Fourth Proportional to 19,816.57, 27,347.18 and 11,859.13

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Solution

The fourth proportional to 19,816.57, 27,347.18 and 11,859.13 is: 16,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.57 : 27,347.18 = 11,859.13 : x
  2. Step 2: Convert to fraction form
    19,816.57/27,347.18 = 11,859.13/x
  3. Step 3: Cross multiply
    19,816.57x = 27,347.18 × 11,859.13
  4. Step 4: Simplify right side
    19,816.57x = 324,313,762.75
  5. Step 5: Solve for x
    x = 324,313,762.75/19,816.57
  6. Step 6: Final answer
    x = 16,365.79

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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.