Home / 13,467.78-20,201.69-6,446.15

Finding the Fourth Proportional to 13,467.78, 20,201.69 and 6,446.15

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Solution

The fourth proportional to 13,467.78, 20,201.69 and 6,446.15 is: 9,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.78 : 20,201.69 = 6,446.15 : x
  2. Step 2: Convert to fraction form
    13,467.78/20,201.69 = 6,446.15/x
  3. Step 3: Cross multiply
    13,467.78x = 20,201.69 × 6,446.15
  4. Step 4: Simplify right side
    13,467.78x = 130,223,123.99
  5. Step 5: Solve for x
    x = 130,223,123.99/13,467.78
  6. Step 6: Final answer
    x = 9,669.23

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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.