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Finding the Fourth Proportional to 8,765.40, 12,096.44 and 4,786.68

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Solution

The fourth proportional to 8,765.40, 12,096.44 and 4,786.68 is: 6,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.40 : 12,096.44 = 4,786.68 : x
  2. Step 2: Convert to fraction form
    8,765.40/12,096.44 = 4,786.68/x
  3. Step 3: Cross multiply
    8,765.40x = 12,096.44 × 4,786.68
  4. Step 4: Simplify right side
    8,765.40x = 57,901,787.42
  5. Step 5: Solve for x
    x = 57,901,787.42/8,765.40
  6. Step 6: Final answer
    x = 6,605.72

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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.