Home / 12,015.45-16,579.71-6,709.32

Finding the Fourth Proportional to 12,015.45, 16,579.71 and 6,709.32

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Solution

The fourth proportional to 12,015.45, 16,579.71 and 6,709.32 is: 9,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.45 : 16,579.71 = 6,709.32 : x
  2. Step 2: Convert to fraction form
    12,015.45/16,579.71 = 6,709.32/x
  3. Step 3: Cross multiply
    12,015.45x = 16,579.71 × 6,709.32
  4. Step 4: Simplify right side
    12,015.45x = 111,238,579.90
  5. Step 5: Solve for x
    x = 111,238,579.90/12,015.45
  6. Step 6: Final answer
    x = 9,257.96

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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.