Home / 8,193.40-12,257.70-7,109.80

Finding the Fourth Proportional to 8,193.40, 12,257.70 and 7,109.80

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Solution

The fourth proportional to 8,193.40, 12,257.70 and 7,109.80 is: 10,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,193.40 : 12,257.70 = 7,109.80 : x
  2. Step 2: Convert to fraction form
    8,193.40/12,257.70 = 7,109.80/x
  3. Step 3: Cross multiply
    8,193.40x = 12,257.70 × 7,109.80
  4. Step 4: Simplify right side
    8,193.40x = 87,149,795.46
  5. Step 5: Solve for x
    x = 87,149,795.46/8,193.40
  6. Step 6: Final answer
    x = 10,636.58

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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.