Home / 11,816.43-16,306.68-6,438.84

Finding the Fourth Proportional to 11,816.43, 16,306.68 and 6,438.84

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Solution

The fourth proportional to 11,816.43, 16,306.68 and 6,438.84 is: 8,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.43 : 16,306.68 = 6,438.84 : x
  2. Step 2: Convert to fraction form
    11,816.43/16,306.68 = 6,438.84/x
  3. Step 3: Cross multiply
    11,816.43x = 16,306.68 × 6,438.84
  4. Step 4: Simplify right side
    11,816.43x = 104,996,103.45
  5. Step 5: Solve for x
    x = 104,996,103.45/11,816.43
  6. Step 6: Final answer
    x = 8,885.60

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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.