Home / 18,451.16-25,453.98-12,077.88

Finding the Fourth Proportional to 18,451.16, 25,453.98 and 12,077.88

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Solution

The fourth proportional to 18,451.16, 25,453.98 and 12,077.88 is: 16,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.16 : 25,453.98 = 12,077.88 : x
  2. Step 2: Convert to fraction form
    18,451.16/25,453.98 = 12,077.88/x
  3. Step 3: Cross multiply
    18,451.16x = 25,453.98 × 12,077.88
  4. Step 4: Simplify right side
    18,451.16x = 307,430,115.96
  5. Step 5: Solve for x
    x = 307,430,115.96/18,451.16
  6. Step 6: Final answer
    x = 16,661.83

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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.