Home / 13,612.20-18,741.85-12,366.48

Finding the Fourth Proportional to 13,612.20, 18,741.85 and 12,366.48

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Solution

The fourth proportional to 13,612.20, 18,741.85 and 12,366.48 is: 17,026.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.20 : 18,741.85 = 12,366.48 : x
  2. Step 2: Convert to fraction form
    13,612.20/18,741.85 = 12,366.48/x
  3. Step 3: Cross multiply
    13,612.20x = 18,741.85 × 12,366.48
  4. Step 4: Simplify right side
    13,612.20x = 231,770,713.19
  5. Step 5: Solve for x
    x = 231,770,713.19/13,612.20
  6. Step 6: Final answer
    x = 17,026.69

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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.