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Finding the Fourth Proportional to 8,818.58, 13,227.87 and 4,200.50

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Solution

The fourth proportional to 8,818.58, 13,227.87 and 4,200.50 is: 6,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.58 : 13,227.87 = 4,200.50 : x
  2. Step 2: Convert to fraction form
    8,818.58/13,227.87 = 4,200.50/x
  3. Step 3: Cross multiply
    8,818.58x = 13,227.87 × 4,200.50
  4. Step 4: Simplify right side
    8,818.58x = 55,563,667.94
  5. Step 5: Solve for x
    x = 55,563,667.94/8,818.58
  6. Step 6: Final answer
    x = 6,300.75

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Double scale
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Similar ratio
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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.