Home / 18,385.32-27,580.68-8,525.58

Finding the Fourth Proportional to 18,385.32, 27,580.68 and 8,525.58

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Solution

The fourth proportional to 18,385.32, 27,580.68 and 8,525.58 is: 12,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.32 : 27,580.68 = 8,525.58 : x
  2. Step 2: Convert to fraction form
    18,385.32/27,580.68 = 8,525.58/x
  3. Step 3: Cross multiply
    18,385.32x = 27,580.68 × 8,525.58
  4. Step 4: Simplify right side
    18,385.32x = 235,141,293.79
  5. Step 5: Solve for x
    x = 235,141,293.79/18,385.32
  6. Step 6: Final answer
    x = 12,789.62

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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.