Home / 10,980.88-16,471.31-2,660.87

Finding the Fourth Proportional to 10,980.88, 16,471.31 and 2,660.87

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Solution

The fourth proportional to 10,980.88, 16,471.31 and 2,660.87 is: 3,991.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.88 : 16,471.31 = 2,660.87 : x
  2. Step 2: Convert to fraction form
    10,980.88/16,471.31 = 2,660.87/x
  3. Step 3: Cross multiply
    10,980.88x = 16,471.31 × 2,660.87
  4. Step 4: Simplify right side
    10,980.88x = 43,828,042.51
  5. Step 5: Solve for x
    x = 43,828,042.51/10,980.88
  6. Step 6: Final answer
    x = 3,991.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.