Home / 18,819.41-25,968.89-10,864.19

Finding the Fourth Proportional to 18,819.41, 25,968.89 and 10,864.19

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Solution

The fourth proportional to 18,819.41, 25,968.89 and 10,864.19 is: 14,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.41 : 25,968.89 = 10,864.19 : x
  2. Step 2: Convert to fraction form
    18,819.41/25,968.89 = 10,864.19/x
  3. Step 3: Cross multiply
    18,819.41x = 25,968.89 × 10,864.19
  4. Step 4: Simplify right side
    18,819.41x = 282,130,770.88
  5. Step 5: Solve for x
    x = 282,130,770.88/18,819.41
  6. Step 6: Final answer
    x = 14,991.48

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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.