Home / 18,505.12-25,537.44-10,122.16

Finding the Fourth Proportional to 18,505.12, 25,537.44 and 10,122.16

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Solution

The fourth proportional to 18,505.12, 25,537.44 and 10,122.16 is: 13,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.12 : 25,537.44 = 10,122.16 : x
  2. Step 2: Convert to fraction form
    18,505.12/25,537.44 = 10,122.16/x
  3. Step 3: Cross multiply
    18,505.12x = 25,537.44 × 10,122.16
  4. Step 4: Simplify right side
    18,505.12x = 258,494,053.67
  5. Step 5: Solve for x
    x = 258,494,053.67/18,505.12
  6. Step 6: Final answer
    x = 13,968.79

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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.