Home / 12,108.97-18,166.70-4,715.56

Finding the Fourth Proportional to 12,108.97, 18,166.70 and 4,715.56

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Solution

The fourth proportional to 12,108.97, 18,166.70 and 4,715.56 is: 7,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.97 : 18,166.70 = 4,715.56 : x
  2. Step 2: Convert to fraction form
    12,108.97/18,166.70 = 4,715.56/x
  3. Step 3: Cross multiply
    12,108.97x = 18,166.70 × 4,715.56
  4. Step 4: Simplify right side
    12,108.97x = 85,666,163.85
  5. Step 5: Solve for x
    x = 85,666,163.85/12,108.97
  6. Step 6: Final answer
    x = 7,074.60

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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.