Home / 18,958.16-26,168.44-12,998.60

Finding the Fourth Proportional to 18,958.16, 26,168.44 and 12,998.60

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Solution

The fourth proportional to 18,958.16, 26,168.44 and 12,998.60 is: 17,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.16 : 26,168.44 = 12,998.60 : x
  2. Step 2: Convert to fraction form
    18,958.16/26,168.44 = 12,998.60/x
  3. Step 3: Cross multiply
    18,958.16x = 26,168.44 × 12,998.60
  4. Step 4: Simplify right side
    18,958.16x = 340,153,084.18
  5. Step 5: Solve for x
    x = 340,153,084.18/18,958.16
  6. Step 6: Final answer
    x = 17,942.30

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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.