Home / 19,687.36-27,168.42-10,734.88

Finding the Fourth Proportional to 19,687.36, 27,168.42 and 10,734.88

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Solution

The fourth proportional to 19,687.36, 27,168.42 and 10,734.88 is: 14,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.36 : 27,168.42 = 10,734.88 : x
  2. Step 2: Convert to fraction form
    19,687.36/27,168.42 = 10,734.88/x
  3. Step 3: Cross multiply
    19,687.36x = 27,168.42 × 10,734.88
  4. Step 4: Simplify right side
    19,687.36x = 291,649,728.49
  5. Step 5: Solve for x
    x = 291,649,728.49/19,687.36
  6. Step 6: Final answer
    x = 14,814.06

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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.