Home / 13,528.38-20,299.26-9,136.20

Finding the Fourth Proportional to 13,528.38, 20,299.26 and 9,136.20

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Solution

The fourth proportional to 13,528.38, 20,299.26 and 9,136.20 is: 13,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.38 : 20,299.26 = 9,136.20 : x
  2. Step 2: Convert to fraction form
    13,528.38/20,299.26 = 9,136.20/x
  3. Step 3: Cross multiply
    13,528.38x = 20,299.26 × 9,136.20
  4. Step 4: Simplify right side
    13,528.38x = 185,458,099.21
  5. Step 5: Solve for x
    x = 185,458,099.21/13,528.38
  6. Step 6: Final answer
    x = 13,708.82

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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.