Home / 18,109.85-27,164.83-4,962.20

Finding the Fourth Proportional to 18,109.85, 27,164.83 and 4,962.20

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Solution

The fourth proportional to 18,109.85, 27,164.83 and 4,962.20 is: 7,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.85 : 27,164.83 = 4,962.20 : x
  2. Step 2: Convert to fraction form
    18,109.85/27,164.83 = 4,962.20/x
  3. Step 3: Cross multiply
    18,109.85x = 27,164.83 × 4,962.20
  4. Step 4: Simplify right side
    18,109.85x = 134,797,319.43
  5. Step 5: Solve for x
    x = 134,797,319.43/18,109.85
  6. Step 6: Final answer
    x = 7,443.32

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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.