Home / 13,529.38-20,289.20-5,205.14

Finding the Fourth Proportional to 13,529.38, 20,289.20 and 5,205.14

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Solution

The fourth proportional to 13,529.38, 20,289.20 and 5,205.14 is: 7,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.38 : 20,289.20 = 5,205.14 : x
  2. Step 2: Convert to fraction form
    13,529.38/20,289.20 = 5,205.14/x
  3. Step 3: Cross multiply
    13,529.38x = 20,289.20 × 5,205.14
  4. Step 4: Simplify right side
    13,529.38x = 105,608,126.49
  5. Step 5: Solve for x
    x = 105,608,126.49/13,529.38
  6. Step 6: Final answer
    x = 7,805.84

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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.