Home / 19,818.66-27,350.61-11,859.36

Finding the Fourth Proportional to 19,818.66, 27,350.61 and 11,859.36

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Solution

The fourth proportional to 19,818.66, 27,350.61 and 11,859.36 is: 16,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.66 : 27,350.61 = 11,859.36 : x
  2. Step 2: Convert to fraction form
    19,818.66/27,350.61 = 11,859.36/x
  3. Step 3: Cross multiply
    19,818.66x = 27,350.61 × 11,859.36
  4. Step 4: Simplify right side
    19,818.66x = 324,360,730.21
  5. Step 5: Solve for x
    x = 324,360,730.21/19,818.66
  6. Step 6: Final answer
    x = 16,366.43

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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.