Home / 10,742.78-16,114.14-3,347.66

Finding the Fourth Proportional to 10,742.78, 16,114.14 and 3,347.66

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Solution

The fourth proportional to 10,742.78, 16,114.14 and 3,347.66 is: 5,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.78 : 16,114.14 = 3,347.66 : x
  2. Step 2: Convert to fraction form
    10,742.78/16,114.14 = 3,347.66/x
  3. Step 3: Cross multiply
    10,742.78x = 16,114.14 × 3,347.66
  4. Step 4: Simplify right side
    10,742.78x = 53,944,661.91
  5. Step 5: Solve for x
    x = 53,944,661.91/10,742.78
  6. Step 6: Final answer
    x = 5,021.48

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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.