Home / 18,579.32-27,869.74-4,728.68

Finding the Fourth Proportional to 18,579.32, 27,869.74 and 4,728.68

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Solution

The fourth proportional to 18,579.32, 27,869.74 and 4,728.68 is: 7,093.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.32 : 27,869.74 = 4,728.68 : x
  2. Step 2: Convert to fraction form
    18,579.32/27,869.74 = 4,728.68/x
  3. Step 3: Cross multiply
    18,579.32x = 27,869.74 × 4,728.68
  4. Step 4: Simplify right side
    18,579.32x = 131,787,082.14
  5. Step 5: Solve for x
    x = 131,787,082.14/18,579.32
  6. Step 6: Final answer
    x = 7,093.21

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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.