Home / 18,763.89-25,891.97-10,806.45

Finding the Fourth Proportional to 18,763.89, 25,891.97 and 10,806.45

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Solution

The fourth proportional to 18,763.89, 25,891.97 and 10,806.45 is: 14,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.89 : 25,891.97 = 10,806.45 : x
  2. Step 2: Convert to fraction form
    18,763.89/25,891.97 = 10,806.45/x
  3. Step 3: Cross multiply
    18,763.89x = 25,891.97 × 10,806.45
  4. Step 4: Simplify right side
    18,763.89x = 279,800,225.17
  5. Step 5: Solve for x
    x = 279,800,225.17/18,763.89
  6. Step 6: Final answer
    x = 14,911.63

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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.