Home / 18,525.75-25,565.54-10,142.25

Finding the Fourth Proportional to 18,525.75, 25,565.54 and 10,142.25

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Solution

The fourth proportional to 18,525.75, 25,565.54 and 10,142.25 is: 13,996.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.75 : 25,565.54 = 10,142.25 : x
  2. Step 2: Convert to fraction form
    18,525.75/25,565.54 = 10,142.25/x
  3. Step 3: Cross multiply
    18,525.75x = 25,565.54 × 10,142.25
  4. Step 4: Simplify right side
    18,525.75x = 259,292,047.35
  5. Step 5: Solve for x
    x = 259,292,047.35/18,525.75
  6. Step 6: Final answer
    x = 13,996.31

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Double scale
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Similar ratio
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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.