Home / 18,505.75-25,538.34-10,122.25

Finding the Fourth Proportional to 18,505.75, 25,538.34 and 10,122.25

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Solution

The fourth proportional to 18,505.75, 25,538.34 and 10,122.25 is: 13,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.75 : 25,538.34 = 10,122.25 : x
  2. Step 2: Convert to fraction form
    18,505.75/25,538.34 = 10,122.25/x
  3. Step 3: Cross multiply
    18,505.75x = 25,538.34 × 10,122.25
  4. Step 4: Simplify right side
    18,505.75x = 258,505,462.07
  5. Step 5: Solve for x
    x = 258,505,462.07/18,505.75
  6. Step 6: Final answer
    x = 13,968.93

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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.