Home / 18,540.48-25,610.40-13,816.56

Finding the Fourth Proportional to 18,540.48, 25,610.40 and 13,816.56

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Solution

The fourth proportional to 18,540.48, 25,610.40 and 13,816.56 is: 19,085.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.48 : 25,610.40 = 13,816.56 : x
  2. Step 2: Convert to fraction form
    18,540.48/25,610.40 = 13,816.56/x
  3. Step 3: Cross multiply
    18,540.48x = 25,610.40 × 13,816.56
  4. Step 4: Simplify right side
    18,540.48x = 353,847,628.22
  5. Step 5: Solve for x
    x = 353,847,628.22/18,540.48
  6. Step 6: Final answer
    x = 19,085.14

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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.