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Finding the Fourth Proportional to 8,005.56, 11,047.58 and 4,420.56

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Solution

The fourth proportional to 8,005.56, 11,047.58 and 4,420.56 is: 6,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.56 : 11,047.58 = 4,420.56 : x
  2. Step 2: Convert to fraction form
    8,005.56/11,047.58 = 4,420.56/x
  3. Step 3: Cross multiply
    8,005.56x = 11,047.58 × 4,420.56
  4. Step 4: Simplify right side
    8,005.56x = 48,836,490.24
  5. Step 5: Solve for x
    x = 48,836,490.24/8,005.56
  6. Step 6: Final answer
    x = 6,100.32

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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.