Home / 19,698.29-27,184.34-11,200.78

Finding the Fourth Proportional to 19,698.29, 27,184.34 and 11,200.78

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Solution

The fourth proportional to 19,698.29, 27,184.34 and 11,200.78 is: 15,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.29 : 27,184.34 = 11,200.78 : x
  2. Step 2: Convert to fraction form
    19,698.29/27,184.34 = 11,200.78/x
  3. Step 3: Cross multiply
    19,698.29x = 27,184.34 × 11,200.78
  4. Step 4: Simplify right side
    19,698.29x = 304,485,873.77
  5. Step 5: Solve for x
    x = 304,485,873.77/19,698.29
  6. Step 6: Final answer
    x = 15,457.48

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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.