Home / 11,816.24-16,306.35-6,438.99

Finding the Fourth Proportional to 11,816.24, 16,306.35 and 6,438.99

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Solution

The fourth proportional to 11,816.24, 16,306.35 and 6,438.99 is: 8,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.24 : 16,306.35 = 6,438.99 : x
  2. Step 2: Convert to fraction form
    11,816.24/16,306.35 = 6,438.99/x
  3. Step 3: Cross multiply
    11,816.24x = 16,306.35 × 6,438.99
  4. Step 4: Simplify right side
    11,816.24x = 104,996,424.59
  5. Step 5: Solve for x
    x = 104,996,424.59/11,816.24
  6. Step 6: Final answer
    x = 8,885.78

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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.