Home / 13,100.33-18,089.34-12,150.61

Finding the Fourth Proportional to 13,100.33, 18,089.34 and 12,150.61

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Solution

The fourth proportional to 13,100.33, 18,089.34 and 12,150.61 is: 16,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.33 : 18,089.34 = 12,150.61 : x
  2. Step 2: Convert to fraction form
    13,100.33/18,089.34 = 12,150.61/x
  3. Step 3: Cross multiply
    13,100.33x = 18,089.34 × 12,150.61
  4. Step 4: Simplify right side
    13,100.33x = 219,796,515.50
  5. Step 5: Solve for x
    x = 219,796,515.50/13,100.33
  6. Step 6: Final answer
    x = 16,777.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.