Home / 18,837.09-28,255.64-7,150.31

Finding the Fourth Proportional to 18,837.09, 28,255.64 and 7,150.31

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Solution

The fourth proportional to 18,837.09, 28,255.64 and 7,150.31 is: 10,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.09 : 28,255.64 = 7,150.31 : x
  2. Step 2: Convert to fraction form
    18,837.09/28,255.64 = 7,150.31/x
  3. Step 3: Cross multiply
    18,837.09x = 28,255.64 × 7,150.31
  4. Step 4: Simplify right side
    18,837.09x = 202,036,408.22
  5. Step 5: Solve for x
    x = 202,036,408.22/18,837.09
  6. Step 6: Final answer
    x = 10,725.46

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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.