Home / 18,288.09-25,238.04-11,218.41

Finding the Fourth Proportional to 18,288.09, 25,238.04 and 11,218.41

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Solution

The fourth proportional to 18,288.09, 25,238.04 and 11,218.41 is: 15,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.09 : 25,238.04 = 11,218.41 : x
  2. Step 2: Convert to fraction form
    18,288.09/25,238.04 = 11,218.41/x
  3. Step 3: Cross multiply
    18,288.09x = 25,238.04 × 11,218.41
  4. Step 4: Simplify right side
    18,288.09x = 283,130,680.32
  5. Step 5: Solve for x
    x = 283,130,680.32/18,288.09
  6. Step 6: Final answer
    x = 15,481.70

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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.