Home / 8,579.40-12,866.94-3,385.32

Finding the Fourth Proportional to 8,579.40, 12,866.94 and 3,385.32

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Solution

The fourth proportional to 8,579.40, 12,866.94 and 3,385.32 is: 5,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.40 : 12,866.94 = 3,385.32 : x
  2. Step 2: Convert to fraction form
    8,579.40/12,866.94 = 3,385.32/x
  3. Step 3: Cross multiply
    8,579.40x = 12,866.94 × 3,385.32
  4. Step 4: Simplify right side
    8,579.40x = 43,558,709.32
  5. Step 5: Solve for x
    x = 43,558,709.32/8,579.40
  6. Step 6: Final answer
    x = 5,077.13

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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.