Home / 12,165.18-16,787.44-6,860.50

Finding the Fourth Proportional to 12,165.18, 16,787.44 and 6,860.50

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Solution

The fourth proportional to 12,165.18, 16,787.44 and 6,860.50 is: 9,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.18 : 16,787.44 = 6,860.50 : x
  2. Step 2: Convert to fraction form
    12,165.18/16,787.44 = 6,860.50/x
  3. Step 3: Cross multiply
    12,165.18x = 16,787.44 × 6,860.50
  4. Step 4: Simplify right side
    12,165.18x = 115,170,232.12
  5. Step 5: Solve for x
    x = 115,170,232.12/12,165.18
  6. Step 6: Final answer
    x = 9,467.20

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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.