Home / 13,431.56-20,125.06-8,226.50

Finding the Fourth Proportional to 13,431.56, 20,125.06 and 8,226.50

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Solution

The fourth proportional to 13,431.56, 20,125.06 and 8,226.50 is: 12,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.56 : 20,125.06 = 8,226.50 : x
  2. Step 2: Convert to fraction form
    13,431.56/20,125.06 = 8,226.50/x
  3. Step 3: Cross multiply
    13,431.56x = 20,125.06 × 8,226.50
  4. Step 4: Simplify right side
    13,431.56x = 165,558,806.09
  5. Step 5: Solve for x
    x = 165,558,806.09/13,431.56
  6. Step 6: Final answer
    x = 12,326.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.