Home / 13,440.17-18,505.06-12,194.59

Finding the Fourth Proportional to 13,440.17, 18,505.06 and 12,194.59

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Solution

The fourth proportional to 13,440.17, 18,505.06 and 12,194.59 is: 16,790.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.17 : 18,505.06 = 12,194.59 : x
  2. Step 2: Convert to fraction form
    13,440.17/18,505.06 = 12,194.59/x
  3. Step 3: Cross multiply
    13,440.17x = 18,505.06 × 12,194.59
  4. Step 4: Simplify right side
    13,440.17x = 225,661,577.57
  5. Step 5: Solve for x
    x = 225,661,577.57/13,440.17
  6. Step 6: Final answer
    x = 16,790.09

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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.