Home / 18,707.28-25,818.78-11,538.37

Finding the Fourth Proportional to 18,707.28, 25,818.78 and 11,538.37

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Solution

The fourth proportional to 18,707.28, 25,818.78 and 11,538.37 is: 15,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.28 : 25,818.78 = 11,538.37 : x
  2. Step 2: Convert to fraction form
    18,707.28/25,818.78 = 11,538.37/x
  3. Step 3: Cross multiply
    18,707.28x = 25,818.78 × 11,538.37
  4. Step 4: Simplify right side
    18,707.28x = 297,906,636.59
  5. Step 5: Solve for x
    x = 297,906,636.59/18,707.28
  6. Step 6: Final answer
    x = 15,924.64

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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.