Home / 18,330.12-27,491.67-5,179.32

Finding the Fourth Proportional to 18,330.12, 27,491.67 and 5,179.32

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Solution

The fourth proportional to 18,330.12, 27,491.67 and 5,179.32 is: 7,767.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.12 : 27,491.67 = 5,179.32 : x
  2. Step 2: Convert to fraction form
    18,330.12/27,491.67 = 5,179.32/x
  3. Step 3: Cross multiply
    18,330.12x = 27,491.67 × 5,179.32
  4. Step 4: Simplify right side
    18,330.12x = 142,388,156.26
  5. Step 5: Solve for x
    x = 142,388,156.26/18,330.12
  6. Step 6: Final answer
    x = 7,767.99

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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.