Home / 11,217.40-16,811.70-6,830.20

Finding the Fourth Proportional to 11,217.40, 16,811.70 and 6,830.20

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Solution

The fourth proportional to 11,217.40, 16,811.70 and 6,830.20 is: 10,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.40 : 16,811.70 = 6,830.20 : x
  2. Step 2: Convert to fraction form
    11,217.40/16,811.70 = 6,830.20/x
  3. Step 3: Cross multiply
    11,217.40x = 16,811.70 × 6,830.20
  4. Step 4: Simplify right side
    11,217.40x = 114,827,273.34
  5. Step 5: Solve for x
    x = 114,827,273.34/11,217.40
  6. Step 6: Final answer
    x = 10,236.53

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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.