Home / 19,403.64-26,760.78-11,938.68

Finding the Fourth Proportional to 19,403.64, 26,760.78 and 11,938.68

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Solution

The fourth proportional to 19,403.64, 26,760.78 and 11,938.68 is: 16,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.64 : 26,760.78 = 11,938.68 : x
  2. Step 2: Convert to fraction form
    19,403.64/26,760.78 = 11,938.68/x
  3. Step 3: Cross multiply
    19,403.64x = 26,760.78 × 11,938.68
  4. Step 4: Simplify right side
    19,403.64x = 319,488,388.97
  5. Step 5: Solve for x
    x = 319,488,388.97/19,403.64
  6. Step 6: Final answer
    x = 16,465.38

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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.