Home / 18,956.81-26,161.67-10,999.03

Finding the Fourth Proportional to 18,956.81, 26,161.67 and 10,999.03

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Solution

The fourth proportional to 18,956.81, 26,161.67 and 10,999.03 is: 15,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.81 : 26,161.67 = 10,999.03 : x
  2. Step 2: Convert to fraction form
    18,956.81/26,161.67 = 10,999.03/x
  3. Step 3: Cross multiply
    18,956.81x = 26,161.67 × 10,999.03
  4. Step 4: Simplify right side
    18,956.81x = 287,752,993.18
  5. Step 5: Solve for x
    x = 287,752,993.18/18,956.81
  6. Step 6: Final answer
    x = 15,179.40

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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.