Home / 18,287.40-25,238.30-11,486.37

Finding the Fourth Proportional to 18,287.40, 25,238.30 and 11,486.37

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Solution

The fourth proportional to 18,287.40, 25,238.30 and 11,486.37 is: 15,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.40 : 25,238.30 = 11,486.37 : x
  2. Step 2: Convert to fraction form
    18,287.40/25,238.30 = 11,486.37/x
  3. Step 3: Cross multiply
    18,287.40x = 25,238.30 × 11,486.37
  4. Step 4: Simplify right side
    18,287.40x = 289,896,394.54
  5. Step 5: Solve for x
    x = 289,896,394.54/18,287.40
  6. Step 6: Final answer
    x = 15,852.25

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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.