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Finding the Fourth Proportional to 11,878.85, 17,820.09 and 4,483.14

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Solution

The fourth proportional to 11,878.85, 17,820.09 and 4,483.14 is: 6,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.85 : 17,820.09 = 4,483.14 : x
  2. Step 2: Convert to fraction form
    11,878.85/17,820.09 = 4,483.14/x
  3. Step 3: Cross multiply
    11,878.85x = 17,820.09 × 4,483.14
  4. Step 4: Simplify right side
    11,878.85x = 79,889,958.28
  5. Step 5: Solve for x
    x = 79,889,958.28/11,878.85
  6. Step 6: Final answer
    x = 6,725.40

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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.