Home / 12,078.05-18,104.34-6,529.88

Finding the Fourth Proportional to 12,078.05, 18,104.34 and 6,529.88

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Solution

The fourth proportional to 12,078.05, 18,104.34 and 6,529.88 is: 9,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.05 : 18,104.34 = 6,529.88 : x
  2. Step 2: Convert to fraction form
    12,078.05/18,104.34 = 6,529.88/x
  3. Step 3: Cross multiply
    12,078.05x = 18,104.34 × 6,529.88
  4. Step 4: Simplify right side
    12,078.05x = 118,219,237.43
  5. Step 5: Solve for x
    x = 118,219,237.43/12,078.05
  6. Step 6: Final answer
    x = 9,787.94

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1.5x scale

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.