Home / 19,738.72-27,239.79-10,786.60

Finding the Fourth Proportional to 19,738.72, 27,239.79 and 10,786.60

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Solution

The fourth proportional to 19,738.72, 27,239.79 and 10,786.60 is: 14,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.72 : 27,239.79 = 10,786.60 : x
  2. Step 2: Convert to fraction form
    19,738.72/27,239.79 = 10,786.60/x
  3. Step 3: Cross multiply
    19,738.72x = 27,239.79 × 10,786.60
  4. Step 4: Simplify right side
    19,738.72x = 293,824,718.81
  5. Step 5: Solve for x
    x = 293,824,718.81/19,738.72
  6. Step 6: Final answer
    x = 14,885.70

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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.