Home / 10,939.41-16,323.75-9,761.31

Finding the Fourth Proportional to 10,939.41, 16,323.75 and 9,761.31

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Solution

The fourth proportional to 10,939.41, 16,323.75 and 9,761.31 is: 14,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.41 : 16,323.75 = 9,761.31 : x
  2. Step 2: Convert to fraction form
    10,939.41/16,323.75 = 9,761.31/x
  3. Step 3: Cross multiply
    10,939.41x = 16,323.75 × 9,761.31
  4. Step 4: Simplify right side
    10,939.41x = 159,341,184.11
  5. Step 5: Solve for x
    x = 159,341,184.11/10,939.41
  6. Step 6: Final answer
    x = 14,565.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.