Home / 26,136.50-39,186.93-8,603.78

Finding the Fourth Proportional to 26,136.50, 39,186.93 and 8,603.78

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Solution

The fourth proportional to 26,136.50, 39,186.93 and 8,603.78 is: 12,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,136.50 : 39,186.93 = 8,603.78 : x
  2. Step 2: Convert to fraction form
    26,136.50/39,186.93 = 8,603.78/x
  3. Step 3: Cross multiply
    26,136.50x = 39,186.93 × 8,603.78
  4. Step 4: Simplify right side
    26,136.50x = 337,155,724.60
  5. Step 5: Solve for x
    x = 337,155,724.60/26,136.50
  6. Step 6: Final answer
    x = 12,899.80

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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.