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Finding the Fourth Proportional to 8,100.58, 11,178.51 and 4,914.24

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Solution

The fourth proportional to 8,100.58, 11,178.51 and 4,914.24 is: 6,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.58 : 11,178.51 = 4,914.24 : x
  2. Step 2: Convert to fraction form
    8,100.58/11,178.51 = 4,914.24/x
  3. Step 3: Cross multiply
    8,100.58x = 11,178.51 × 4,914.24
  4. Step 4: Simplify right side
    8,100.58x = 54,933,880.98
  5. Step 5: Solve for x
    x = 54,933,880.98/8,100.58
  6. Step 6: Final answer
    x = 6,781.48

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Double scale
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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.