Home / 11,228.78-16,841.12-4,208.11

Finding the Fourth Proportional to 11,228.78, 16,841.12 and 4,208.11

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Solution

The fourth proportional to 11,228.78, 16,841.12 and 4,208.11 is: 6,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.78 : 16,841.12 = 4,208.11 : x
  2. Step 2: Convert to fraction form
    11,228.78/16,841.12 = 4,208.11/x
  3. Step 3: Cross multiply
    11,228.78x = 16,841.12 × 4,208.11
  4. Step 4: Simplify right side
    11,228.78x = 70,869,222.34
  5. Step 5: Solve for x
    x = 70,869,222.34/11,228.78
  6. Step 6: Final answer
    x = 6,311.39

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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.