Home / 13,297.20-19,939.70-4,528.55

Finding the Fourth Proportional to 13,297.20, 19,939.70 and 4,528.55

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Solution

The fourth proportional to 13,297.20, 19,939.70 and 4,528.55 is: 6,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.20 : 19,939.70 = 4,528.55 : x
  2. Step 2: Convert to fraction form
    13,297.20/19,939.70 = 4,528.55/x
  3. Step 3: Cross multiply
    13,297.20x = 19,939.70 × 4,528.55
  4. Step 4: Simplify right side
    13,297.20x = 90,297,806.09
  5. Step 5: Solve for x
    x = 90,297,806.09/13,297.20
  6. Step 6: Final answer
    x = 6,790.74

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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.