Home / 11,795.21-16,284.11-7,821.69

Finding the Fourth Proportional to 11,795.21, 16,284.11 and 7,821.69

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Solution

The fourth proportional to 11,795.21, 16,284.11 and 7,821.69 is: 10,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,795.21 : 16,284.11 = 7,821.69 : x
  2. Step 2: Convert to fraction form
    11,795.21/16,284.11 = 7,821.69/x
  3. Step 3: Cross multiply
    11,795.21x = 16,284.11 × 7,821.69
  4. Step 4: Simplify right side
    11,795.21x = 127,369,260.35
  5. Step 5: Solve for x
    x = 127,369,260.35/11,795.21
  6. Step 6: Final answer
    x = 10,798.39

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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.