Home / 7,787.31-11,672.10-6,848.43

Finding the Fourth Proportional to 7,787.31, 11,672.10 and 6,848.43

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Solution

The fourth proportional to 7,787.31, 11,672.10 and 6,848.43 is: 10,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.31 : 11,672.10 = 6,848.43 : x
  2. Step 2: Convert to fraction form
    7,787.31/11,672.10 = 6,848.43/x
  3. Step 3: Cross multiply
    7,787.31x = 11,672.10 × 6,848.43
  4. Step 4: Simplify right side
    7,787.31x = 79,935,559.80
  5. Step 5: Solve for x
    x = 79,935,559.80/7,787.31
  6. Step 6: Final answer
    x = 10,264.85

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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.