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Finding the Fourth Proportional to 11,000.86, 15,181.08 and 6,285.10

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Solution

The fourth proportional to 11,000.86, 15,181.08 and 6,285.10 is: 8,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.86 : 15,181.08 = 6,285.10 : x
  2. Step 2: Convert to fraction form
    11,000.86/15,181.08 = 6,285.10/x
  3. Step 3: Cross multiply
    11,000.86x = 15,181.08 × 6,285.10
  4. Step 4: Simplify right side
    11,000.86x = 95,414,605.91
  5. Step 5: Solve for x
    x = 95,414,605.91/11,000.86
  6. Step 6: Final answer
    x = 8,673.38

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Half 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.