Home / 11,851.40-16,354.90-6,816.62

Finding the Fourth Proportional to 11,851.40, 16,354.90 and 6,816.62

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Solution

The fourth proportional to 11,851.40, 16,354.90 and 6,816.62 is: 9,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,851.40 : 16,354.90 = 6,816.62 : x
  2. Step 2: Convert to fraction form
    11,851.40/16,354.90 = 6,816.62/x
  3. Step 3: Cross multiply
    11,851.40x = 16,354.90 × 6,816.62
  4. Step 4: Simplify right side
    11,851.40x = 111,485,138.44
  5. Step 5: Solve for x
    x = 111,485,138.44/11,851.40
  6. Step 6: Final answer
    x = 9,406.92

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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.