Home / 11,816.28-16,306.81-6,511.44

Finding the Fourth Proportional to 11,816.28, 16,306.81 and 6,511.44

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Solution

The fourth proportional to 11,816.28, 16,306.81 and 6,511.44 is: 8,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.28 : 16,306.81 = 6,511.44 : x
  2. Step 2: Convert to fraction form
    11,816.28/16,306.81 = 6,511.44/x
  3. Step 3: Cross multiply
    11,816.28x = 16,306.81 × 6,511.44
  4. Step 4: Simplify right side
    11,816.28x = 106,180,823.05
  5. Step 5: Solve for x
    x = 106,180,823.05/11,816.28
  6. Step 6: Final answer
    x = 8,985.98

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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.