Home / 18,820.46-25,960.83-12,447.02

Finding the Fourth Proportional to 18,820.46, 25,960.83 and 12,447.02

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Solution

The fourth proportional to 18,820.46, 25,960.83 and 12,447.02 is: 17,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.46 : 25,960.83 = 12,447.02 : x
  2. Step 2: Convert to fraction form
    18,820.46/25,960.83 = 12,447.02/x
  3. Step 3: Cross multiply
    18,820.46x = 25,960.83 × 12,447.02
  4. Step 4: Simplify right side
    18,820.46x = 323,134,970.23
  5. Step 5: Solve for x
    x = 323,134,970.23/18,820.46
  6. Step 6: Final answer
    x = 17,169.34

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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.