Home / 18,285.21-27,423.77-5,137.29

Finding the Fourth Proportional to 18,285.21, 27,423.77 and 5,137.29

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Solution

The fourth proportional to 18,285.21, 27,423.77 and 5,137.29 is: 7,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.21 : 27,423.77 = 5,137.29 : x
  2. Step 2: Convert to fraction form
    18,285.21/27,423.77 = 5,137.29/x
  3. Step 3: Cross multiply
    18,285.21x = 27,423.77 × 5,137.29
  4. Step 4: Simplify right side
    18,285.21x = 140,883,833.70
  5. Step 5: Solve for x
    x = 140,883,833.70/18,285.21
  6. Step 6: Final answer
    x = 7,704.80

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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.