Home / 18,479.08-27,705.66-6,790.78

Finding the Fourth Proportional to 18,479.08, 27,705.66 and 6,790.78

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Solution

The fourth proportional to 18,479.08, 27,705.66 and 6,790.78 is: 10,181.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.08 : 27,705.66 = 6,790.78 : x
  2. Step 2: Convert to fraction form
    18,479.08/27,705.66 = 6,790.78/x
  3. Step 3: Cross multiply
    18,479.08x = 27,705.66 × 6,790.78
  4. Step 4: Simplify right side
    18,479.08x = 188,143,041.81
  5. Step 5: Solve for x
    x = 188,143,041.81/18,479.08
  6. Step 6: Final answer
    x = 10,181.41

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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.