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Finding the Fourth Proportional to 11,228.40, 16,810.20 and 11,228.40

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Solution

The fourth proportional to 11,228.40, 16,810.20 and 11,228.40 is: 16,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.40 : 16,810.20 = 11,228.40 : x
  2. Step 2: Convert to fraction form
    11,228.40/16,810.20 = 11,228.40/x
  3. Step 3: Cross multiply
    11,228.40x = 16,810.20 × 11,228.40
  4. Step 4: Simplify right side
    11,228.40x = 188,751,649.68
  5. Step 5: Solve for x
    x = 188,751,649.68/11,228.40
  6. Step 6: Final answer
    x = 16,810.20

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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.