Home / 18,786.08-28,179.99-10,459.83

Finding the Fourth Proportional to 18,786.08, 28,179.99 and 10,459.83

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Solution

The fourth proportional to 18,786.08, 28,179.99 and 10,459.83 is: 15,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.08 : 28,179.99 = 10,459.83 : x
  2. Step 2: Convert to fraction form
    18,786.08/28,179.99 = 10,459.83/x
  3. Step 3: Cross multiply
    18,786.08x = 28,179.99 × 10,459.83
  4. Step 4: Simplify right side
    18,786.08x = 294,757,711.60
  5. Step 5: Solve for x
    x = 294,757,711.60/18,786.08
  6. Step 6: Final answer
    x = 15,690.22

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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.