Home / 12,175.65-18,273.84-4,785.28

Finding the Fourth Proportional to 12,175.65, 18,273.84 and 4,785.28

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Solution

The fourth proportional to 12,175.65, 18,273.84 and 4,785.28 is: 7,181.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.65 : 18,273.84 = 4,785.28 : x
  2. Step 2: Convert to fraction form
    12,175.65/18,273.84 = 4,785.28/x
  3. Step 3: Cross multiply
    12,175.65x = 18,273.84 × 4,785.28
  4. Step 4: Simplify right side
    12,175.65x = 87,445,441.08
  5. Step 5: Solve for x
    x = 87,445,441.08/12,175.65
  6. Step 6: Final answer
    x = 7,181.99

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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.