Home / 18,135.38-27,197.30-5,820.50

Finding the Fourth Proportional to 18,135.38, 27,197.30 and 5,820.50

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Solution

The fourth proportional to 18,135.38, 27,197.30 and 5,820.50 is: 8,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.38 : 27,197.30 = 5,820.50 : x
  2. Step 2: Convert to fraction form
    18,135.38/27,197.30 = 5,820.50/x
  3. Step 3: Cross multiply
    18,135.38x = 27,197.30 × 5,820.50
  4. Step 4: Simplify right side
    18,135.38x = 158,301,884.65
  5. Step 5: Solve for x
    x = 158,301,884.65/18,135.38
  6. Step 6: Final answer
    x = 8,728.90

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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.