Home / 11,181.85-15,415.07-8,893.13

Finding the Fourth Proportional to 11,181.85, 15,415.07 and 8,893.13

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Solution

The fourth proportional to 11,181.85, 15,415.07 and 8,893.13 is: 12,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.85 : 15,415.07 = 8,893.13 : x
  2. Step 2: Convert to fraction form
    11,181.85/15,415.07 = 8,893.13/x
  3. Step 3: Cross multiply
    11,181.85x = 15,415.07 × 8,893.13
  4. Step 4: Simplify right side
    11,181.85x = 137,088,149.95
  5. Step 5: Solve for x
    x = 137,088,149.95/11,181.85
  6. Step 6: Final answer
    x = 12,259.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.