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Finding the Fourth Proportional to 11,080.50, 15,290.98 and 6,364.82

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Solution

The fourth proportional to 11,080.50, 15,290.98 and 6,364.82 is: 8,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,080.50 : 15,290.98 = 6,364.82 : x
  2. Step 2: Convert to fraction form
    11,080.50/15,290.98 = 6,364.82/x
  3. Step 3: Cross multiply
    11,080.50x = 15,290.98 × 6,364.82
  4. Step 4: Simplify right side
    11,080.50x = 97,324,335.32
  5. Step 5: Solve for x
    x = 97,324,335.32/11,080.50
  6. Step 6: Final answer
    x = 8,783.39

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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.