Home / 10,786.69-16,195.02-7,112.53

Finding the Fourth Proportional to 10,786.69, 16,195.02 and 7,112.53

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Solution

The fourth proportional to 10,786.69, 16,195.02 and 7,112.53 is: 10,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.69 : 16,195.02 = 7,112.53 : x
  2. Step 2: Convert to fraction form
    10,786.69/16,195.02 = 7,112.53/x
  3. Step 3: Cross multiply
    10,786.69x = 16,195.02 × 7,112.53
  4. Step 4: Simplify right side
    10,786.69x = 115,187,565.60
  5. Step 5: Solve for x
    x = 115,187,565.60/10,786.69
  6. Step 6: Final answer
    x = 10,678.68

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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.