Home / 18,626.39-25,704.05-10,128.44

Finding the Fourth Proportional to 18,626.39, 25,704.05 and 10,128.44

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Solution

The fourth proportional to 18,626.39, 25,704.05 and 10,128.44 is: 13,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.39 : 25,704.05 = 10,128.44 : x
  2. Step 2: Convert to fraction form
    18,626.39/25,704.05 = 10,128.44/x
  3. Step 3: Cross multiply
    18,626.39x = 25,704.05 × 10,128.44
  4. Step 4: Simplify right side
    18,626.39x = 260,341,749.02
  5. Step 5: Solve for x
    x = 260,341,749.02/18,626.39
  6. Step 6: Final answer
    x = 13,977.04

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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.