Home / 18,340.84-25,322.97-12,380.86

Finding the Fourth Proportional to 18,340.84, 25,322.97 and 12,380.86

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Solution

The fourth proportional to 18,340.84, 25,322.97 and 12,380.86 is: 17,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.84 : 25,322.97 = 12,380.86 : x
  2. Step 2: Convert to fraction form
    18,340.84/25,322.97 = 12,380.86/x
  3. Step 3: Cross multiply
    18,340.84x = 25,322.97 × 12,380.86
  4. Step 4: Simplify right side
    18,340.84x = 313,520,146.35
  5. Step 5: Solve for x
    x = 313,520,146.35/18,340.84
  6. Step 6: Final answer
    x = 17,094.10

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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.