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Finding the Fourth Proportional to 8,765.89, 12,096.81 and 4,787.11

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Solution

The fourth proportional to 8,765.89, 12,096.81 and 4,787.11 is: 6,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.89 : 12,096.81 = 4,787.11 : x
  2. Step 2: Convert to fraction form
    8,765.89/12,096.81 = 4,787.11/x
  3. Step 3: Cross multiply
    8,765.89x = 12,096.81 × 4,787.11
  4. Step 4: Simplify right side
    8,765.89x = 57,908,760.12
  5. Step 5: Solve for x
    x = 57,908,760.12/8,765.89
  6. Step 6: Final answer
    x = 6,606.15

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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.