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Finding the Fourth Proportional to 8,406.56, 11,600.94 and 4,680.56

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Solution

The fourth proportional to 8,406.56, 11,600.94 and 4,680.56 is: 6,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406.56 : 11,600.94 = 4,680.56 : x
  2. Step 2: Convert to fraction form
    8,406.56/11,600.94 = 4,680.56/x
  3. Step 3: Cross multiply
    8,406.56x = 11,600.94 × 4,680.56
  4. Step 4: Simplify right side
    8,406.56x = 54,298,895.73
  5. Step 5: Solve for x
    x = 54,298,895.73/8,406.56
  6. Step 6: Final answer
    x = 6,459.11

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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.