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Finding the Fourth Proportional to 8,005.56, 11,048.34 and 4,420.86

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Solution

The fourth proportional to 8,005.56, 11,048.34 and 4,420.86 is: 6,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.56 : 11,048.34 = 4,420.86 : x
  2. Step 2: Convert to fraction form
    8,005.56/11,048.34 = 4,420.86/x
  3. Step 3: Cross multiply
    8,005.56x = 11,048.34 × 4,420.86
  4. Step 4: Simplify right side
    8,005.56x = 48,843,164.37
  5. Step 5: Solve for x
    x = 48,843,164.37/8,005.56
  6. Step 6: Final answer
    x = 6,101.16

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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.