Home / 13,469.55-20,207.96-5,145.18

Finding the Fourth Proportional to 13,469.55, 20,207.96 and 5,145.18

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Solution

The fourth proportional to 13,469.55, 20,207.96 and 5,145.18 is: 7,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.55 : 20,207.96 = 5,145.18 : x
  2. Step 2: Convert to fraction form
    13,469.55/20,207.96 = 5,145.18/x
  3. Step 3: Cross multiply
    13,469.55x = 20,207.96 × 5,145.18
  4. Step 4: Simplify right side
    13,469.55x = 103,973,591.63
  5. Step 5: Solve for x
    x = 103,973,591.63/13,469.55
  6. Step 6: Final answer
    x = 7,719.16

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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.