Home / 18,000.17-26,999.85-8,136.80

Finding the Fourth Proportional to 18,000.17, 26,999.85 and 8,136.80

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Solution

The fourth proportional to 18,000.17, 26,999.85 and 8,136.80 is: 12,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.17 : 26,999.85 = 8,136.80 : x
  2. Step 2: Convert to fraction form
    18,000.17/26,999.85 = 8,136.80/x
  3. Step 3: Cross multiply
    18,000.17x = 26,999.85 × 8,136.80
  4. Step 4: Simplify right side
    18,000.17x = 219,692,379.48
  5. Step 5: Solve for x
    x = 219,692,379.48/18,000.17
  6. Step 6: Final answer
    x = 12,205.02

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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.