Home / 13,450.71-20,176.78-4,090.01

Finding the Fourth Proportional to 13,450.71, 20,176.78 and 4,090.01

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Solution

The fourth proportional to 13,450.71, 20,176.78 and 4,090.01 is: 6,135.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.71 : 20,176.78 = 4,090.01 : x
  2. Step 2: Convert to fraction form
    13,450.71/20,176.78 = 4,090.01/x
  3. Step 3: Cross multiply
    13,450.71x = 20,176.78 × 4,090.01
  4. Step 4: Simplify right side
    13,450.71x = 82,523,186.66
  5. Step 5: Solve for x
    x = 82,523,186.66/13,450.71
  6. Step 6: Final answer
    x = 6,135.23

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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.