Home / 18,740.22-25,876.38-11,580.52

Finding the Fourth Proportional to 18,740.22, 25,876.38 and 11,580.52

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Solution

The fourth proportional to 18,740.22, 25,876.38 and 11,580.52 is: 15,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.22 : 25,876.38 = 11,580.52 : x
  2. Step 2: Convert to fraction form
    18,740.22/25,876.38 = 11,580.52/x
  3. Step 3: Cross multiply
    18,740.22x = 25,876.38 × 11,580.52
  4. Step 4: Simplify right side
    18,740.22x = 299,661,936.12
  5. Step 5: Solve for x
    x = 299,661,936.12/18,740.22
  6. Step 6: Final answer
    x = 15,990.31

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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.