Home / 13,483.45-20,175.90-7,939.36

Finding the Fourth Proportional to 13,483.45, 20,175.90 and 7,939.36

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Solution

The fourth proportional to 13,483.45, 20,175.90 and 7,939.36 is: 11,880.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.45 : 20,175.90 = 7,939.36 : x
  2. Step 2: Convert to fraction form
    13,483.45/20,175.90 = 7,939.36/x
  3. Step 3: Cross multiply
    13,483.45x = 20,175.90 × 7,939.36
  4. Step 4: Simplify right side
    13,483.45x = 160,183,733.42
  5. Step 5: Solve for x
    x = 160,183,733.42/13,483.45
  6. Step 6: Final answer
    x = 11,880.03

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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.