Home / 19,418.40-26,790.48-11,456.64

Finding the Fourth Proportional to 19,418.40, 26,790.48 and 11,456.64

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Solution

The fourth proportional to 19,418.40, 26,790.48 and 11,456.64 is: 15,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.40 : 26,790.48 = 11,456.64 : x
  2. Step 2: Convert to fraction form
    19,418.40/26,790.48 = 11,456.64/x
  3. Step 3: Cross multiply
    19,418.40x = 26,790.48 × 11,456.64
  4. Step 4: Simplify right side
    19,418.40x = 306,928,884.79
  5. Step 5: Solve for x
    x = 306,928,884.79/19,418.40
  6. Step 6: Final answer
    x = 15,806.09

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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.