Home / 18,765.75-25,852.91-13,090.38

Finding the Fourth Proportional to 18,765.75, 25,852.91 and 13,090.38

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Solution

The fourth proportional to 18,765.75, 25,852.91 and 13,090.38 is: 18,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.75 : 25,852.91 = 13,090.38 : x
  2. Step 2: Convert to fraction form
    18,765.75/25,852.91 = 13,090.38/x
  3. Step 3: Cross multiply
    18,765.75x = 25,852.91 × 13,090.38
  4. Step 4: Simplify right side
    18,765.75x = 338,424,350.55
  5. Step 5: Solve for x
    x = 338,424,350.55/18,765.75
  6. Step 6: Final answer
    x = 18,034.15

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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.