Home / 19,376.31-26,739.82-10,879.11

Finding the Fourth Proportional to 19,376.31, 26,739.82 and 10,879.11

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Solution

The fourth proportional to 19,376.31, 26,739.82 and 10,879.11 is: 15,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.31 : 26,739.82 = 10,879.11 : x
  2. Step 2: Convert to fraction form
    19,376.31/26,739.82 = 10,879.11/x
  3. Step 3: Cross multiply
    19,376.31x = 26,739.82 × 10,879.11
  4. Step 4: Simplify right side
    19,376.31x = 290,905,456.76
  5. Step 5: Solve for x
    x = 290,905,456.76/19,376.31
  6. Step 6: Final answer
    x = 15,013.46

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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.