Home / 13,684.38-20,527.44-5,785.42

Finding the Fourth Proportional to 13,684.38, 20,527.44 and 5,785.42

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Solution

The fourth proportional to 13,684.38, 20,527.44 and 5,785.42 is: 8,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.38 : 20,527.44 = 5,785.42 : x
  2. Step 2: Convert to fraction form
    13,684.38/20,527.44 = 5,785.42/x
  3. Step 3: Cross multiply
    13,684.38x = 20,527.44 × 5,785.42
  4. Step 4: Simplify right side
    13,684.38x = 118,759,861.92
  5. Step 5: Solve for x
    x = 118,759,861.92/13,684.38
  6. Step 6: Final answer
    x = 8,678.50

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Double scale
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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.