Home / 8,331.90-12,495.42-3,136.56

Finding the Fourth Proportional to 8,331.90, 12,495.42 and 3,136.56

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Solution

The fourth proportional to 8,331.90, 12,495.42 and 3,136.56 is: 4,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.90 : 12,495.42 = 3,136.56 : x
  2. Step 2: Convert to fraction form
    8,331.90/12,495.42 = 3,136.56/x
  3. Step 3: Cross multiply
    8,331.90x = 12,495.42 × 3,136.56
  4. Step 4: Simplify right side
    8,331.90x = 39,192,634.56
  5. Step 5: Solve for x
    x = 39,192,634.56/8,331.90
  6. Step 6: Final answer
    x = 4,703.93

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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.