Home / 10,741.62-16,111.79-6,386.79

Finding the Fourth Proportional to 10,741.62, 16,111.79 and 6,386.79

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Solution

The fourth proportional to 10,741.62, 16,111.79 and 6,386.79 is: 9,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,741.62 : 16,111.79 = 6,386.79 : x
  2. Step 2: Convert to fraction form
    10,741.62/16,111.79 = 6,386.79/x
  3. Step 3: Cross multiply
    10,741.62x = 16,111.79 × 6,386.79
  4. Step 4: Simplify right side
    10,741.62x = 102,902,619.25
  5. Step 5: Solve for x
    x = 102,902,619.25/10,741.62
  6. Step 6: Final answer
    x = 9,579.80

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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.