Home / 18,786.03-25,925.43-10,721

Finding the Fourth Proportional to 18,786.03, 25,925.43 and 10,721

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Solution

The fourth proportional to 18,786.03, 25,925.43 and 10,721 is: 14,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.03 : 25,925.43 = 10,721 : x
  2. Step 2: Convert to fraction form
    18,786.03/25,925.43 = 10,721/x
  3. Step 3: Cross multiply
    18,786.03x = 25,925.43 × 10,721
  4. Step 4: Simplify right side
    18,786.03x = 277,946,535.03
  5. Step 5: Solve for x
    x = 277,946,535.03/18,786.03
  6. Step 6: Final answer
    x = 14,795.38

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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.