Home / 18,397.44-25,390.72-12,137.92

Finding the Fourth Proportional to 18,397.44, 25,390.72 and 12,137.92

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Solution

The fourth proportional to 18,397.44, 25,390.72 and 12,137.92 is: 16,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.44 : 25,390.72 = 12,137.92 : x
  2. Step 2: Convert to fraction form
    18,397.44/25,390.72 = 12,137.92/x
  3. Step 3: Cross multiply
    18,397.44x = 25,390.72 × 12,137.92
  4. Step 4: Simplify right side
    18,397.44x = 308,190,528.10
  5. Step 5: Solve for x
    x = 308,190,528.10/18,397.44
  6. Step 6: Final answer
    x = 16,751.82

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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.