Home / 11,865.69-16,374.25-6,829.21

Finding the Fourth Proportional to 11,865.69, 16,374.25 and 6,829.21

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Solution

The fourth proportional to 11,865.69, 16,374.25 and 6,829.21 is: 9,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.69 : 16,374.25 = 6,829.21 : x
  2. Step 2: Convert to fraction form
    11,865.69/16,374.25 = 6,829.21/x
  3. Step 3: Cross multiply
    11,865.69x = 16,374.25 × 6,829.21
  4. Step 4: Simplify right side
    11,865.69x = 111,823,220.85
  5. Step 5: Solve for x
    x = 111,823,220.85/11,865.69
  6. Step 6: Final answer
    x = 9,424.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.