Home / 13,523.40-20,282.76-3,661.38

Finding the Fourth Proportional to 13,523.40, 20,282.76 and 3,661.38

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Solution

The fourth proportional to 13,523.40, 20,282.76 and 3,661.38 is: 5,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.40 : 20,282.76 = 3,661.38 : x
  2. Step 2: Convert to fraction form
    13,523.40/20,282.76 = 3,661.38/x
  3. Step 3: Cross multiply
    13,523.40x = 20,282.76 × 3,661.38
  4. Step 4: Simplify right side
    13,523.40x = 74,262,891.81
  5. Step 5: Solve for x
    x = 74,262,891.81/13,523.40
  6. Step 6: Final answer
    x = 5,491.44

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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.