Home / 26,136.20-39,225.90-12,117.80

Finding the Fourth Proportional to 26,136.20, 39,225.90 and 12,117.80

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Solution

The fourth proportional to 26,136.20, 39,225.90 and 12,117.80 is: 18,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,136.20 : 39,225.90 = 12,117.80 : x
  2. Step 2: Convert to fraction form
    26,136.20/39,225.90 = 12,117.80/x
  3. Step 3: Cross multiply
    26,136.20x = 39,225.90 × 12,117.80
  4. Step 4: Simplify right side
    26,136.20x = 475,331,611.02
  5. Step 5: Solve for x
    x = 475,331,611.02/26,136.20
  6. Step 6: Final answer
    x = 18,186.71

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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.