Home / 18,328.35-27,489.83-5,182.05

Finding the Fourth Proportional to 18,328.35, 27,489.83 and 5,182.05

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Solution

The fourth proportional to 18,328.35, 27,489.83 and 5,182.05 is: 7,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.35 : 27,489.83 = 5,182.05 : x
  2. Step 2: Convert to fraction form
    18,328.35/27,489.83 = 5,182.05/x
  3. Step 3: Cross multiply
    18,328.35x = 27,489.83 × 5,182.05
  4. Step 4: Simplify right side
    18,328.35x = 142,453,647.64
  5. Step 5: Solve for x
    x = 142,453,647.64/18,328.35
  6. Step 6: Final answer
    x = 7,772.31

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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.