Home / 13,559.27-20,339.78-3,697.70

Finding the Fourth Proportional to 13,559.27, 20,339.78 and 3,697.70

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Solution

The fourth proportional to 13,559.27, 20,339.78 and 3,697.70 is: 5,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.27 : 20,339.78 = 3,697.70 : x
  2. Step 2: Convert to fraction form
    13,559.27/20,339.78 = 3,697.70/x
  3. Step 3: Cross multiply
    13,559.27x = 20,339.78 × 3,697.70
  4. Step 4: Simplify right side
    13,559.27x = 75,210,284.32
  5. Step 5: Solve for x
    x = 75,210,284.32/13,559.27
  6. Step 6: Final answer
    x = 5,546.78

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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.