Home / 19,879.36-27,432.96-10,926.88

Finding the Fourth Proportional to 19,879.36, 27,432.96 and 10,926.88

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Solution

The fourth proportional to 19,879.36, 27,432.96 and 10,926.88 is: 15,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.36 : 27,432.96 = 10,926.88 : x
  2. Step 2: Convert to fraction form
    19,879.36/27,432.96 = 10,926.88/x
  3. Step 3: Cross multiply
    19,879.36x = 27,432.96 × 10,926.88
  4. Step 4: Simplify right side
    19,879.36x = 299,756,661.96
  5. Step 5: Solve for x
    x = 299,756,661.96/19,879.36
  6. Step 6: Final answer
    x = 15,078.79

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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.