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Finding the Fourth Proportional to 8,553.61, 12,830.41 and 6,228.41

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Solution

The fourth proportional to 8,553.61, 12,830.41 and 6,228.41 is: 9,342.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.61 : 12,830.41 = 6,228.41 : x
  2. Step 2: Convert to fraction form
    8,553.61/12,830.41 = 6,228.41/x
  3. Step 3: Cross multiply
    8,553.61x = 12,830.41 × 6,228.41
  4. Step 4: Simplify right side
    8,553.61x = 79,913,006.30
  5. Step 5: Solve for x
    x = 79,913,006.30/8,553.61
  6. Step 6: Final answer
    x = 9,342.61

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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.