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Finding the Fourth Proportional to 8,679.56, 11,977.18 and 4,901.54

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Solution

The fourth proportional to 8,679.56, 11,977.18 and 4,901.54 is: 6,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.56 : 11,977.18 = 4,901.54 : x
  2. Step 2: Convert to fraction form
    8,679.56/11,977.18 = 4,901.54/x
  3. Step 3: Cross multiply
    8,679.56x = 11,977.18 × 4,901.54
  4. Step 4: Simplify right side
    8,679.56x = 58,706,554.72
  5. Step 5: Solve for x
    x = 58,706,554.72/8,679.56
  6. Step 6: Final answer
    x = 6,763.77

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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.