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Finding the Fourth Proportional to 8,021, 11,069 and 4,484.28

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Solution

The fourth proportional to 8,021, 11,069 and 4,484.28 is: 6,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021 : 11,069 = 4,484.28 : x
  2. Step 2: Convert to fraction form
    8,021/11,069 = 4,484.28/x
  3. Step 3: Cross multiply
    8,021x = 11,069 × 4,484.28
  4. Step 4: Simplify right side
    8,021x = 49,636,495.32
  5. Step 5: Solve for x
    x = 49,636,495.32/8,021
  6. Step 6: Final answer
    x = 6,188.32

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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.