Home / 11,787.06-17,678.40-4,765.24

Finding the Fourth Proportional to 11,787.06, 17,678.40 and 4,765.24

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Solution

The fourth proportional to 11,787.06, 17,678.40 and 4,765.24 is: 7,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.06 : 17,678.40 = 4,765.24 : x
  2. Step 2: Convert to fraction form
    11,787.06/17,678.40 = 4,765.24/x
  3. Step 3: Cross multiply
    11,787.06x = 17,678.40 × 4,765.24
  4. Step 4: Simplify right side
    11,787.06x = 84,241,818.82
  5. Step 5: Solve for x
    x = 84,241,818.82/11,787.06
  6. Step 6: Final answer
    x = 7,146.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.