Home / 18,680.48-28,003.44-7,001.36

Finding the Fourth Proportional to 18,680.48, 28,003.44 and 7,001.36

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Solution

The fourth proportional to 18,680.48, 28,003.44 and 7,001.36 is: 10,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.48 : 28,003.44 = 7,001.36 : x
  2. Step 2: Convert to fraction form
    18,680.48/28,003.44 = 7,001.36/x
  3. Step 3: Cross multiply
    18,680.48x = 28,003.44 × 7,001.36
  4. Step 4: Simplify right side
    18,680.48x = 196,062,164.68
  5. Step 5: Solve for x
    x = 196,062,164.68/18,680.48
  6. Step 6: Final answer
    x = 10,495.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.