Home / 11,208.45-16,815.30-6,281.49

Finding the Fourth Proportional to 11,208.45, 16,815.30 and 6,281.49

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Solution

The fourth proportional to 11,208.45, 16,815.30 and 6,281.49 is: 9,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.45 : 16,815.30 = 6,281.49 : x
  2. Step 2: Convert to fraction form
    11,208.45/16,815.30 = 6,281.49/x
  3. Step 3: Cross multiply
    11,208.45x = 16,815.30 × 6,281.49
  4. Step 4: Simplify right side
    11,208.45x = 105,625,138.80
  5. Step 5: Solve for x
    x = 105,625,138.80/11,208.45
  6. Step 6: Final answer
    x = 9,423.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.