Home / 8,787.32-12,126.38-4,808.37

Finding the Fourth Proportional to 8,787.32, 12,126.38 and 4,808.37

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Solution

The fourth proportional to 8,787.32, 12,126.38 and 4,808.37 is: 6,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.32 : 12,126.38 = 4,808.37 : x
  2. Step 2: Convert to fraction form
    8,787.32/12,126.38 = 4,808.37/x
  3. Step 3: Cross multiply
    8,787.32x = 12,126.38 × 4,808.37
  4. Step 4: Simplify right side
    8,787.32x = 58,308,121.80
  5. Step 5: Solve for x
    x = 58,308,121.80/8,787.32
  6. Step 6: Final answer
    x = 6,635.48

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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.