Home / 11,851.29-16,351.34-6,813.68

Finding the Fourth Proportional to 11,851.29, 16,351.34 and 6,813.68

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Solution

The fourth proportional to 11,851.29, 16,351.34 and 6,813.68 is: 9,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.29 : 16,351.34 = 6,813.68 : x
  2. Step 2: Convert to fraction form
    11,851.29/16,351.34 = 6,813.68/x
  3. Step 3: Cross multiply
    11,851.29x = 16,351.34 × 6,813.68
  4. Step 4: Simplify right side
    11,851.29x = 111,412,798.33
  5. Step 5: Solve for x
    x = 111,412,798.33/11,851.29
  6. Step 6: Final answer
    x = 9,400.90

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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.