Home / 10,636.38-15,955.85-3,520.86

Finding the Fourth Proportional to 10,636.38, 15,955.85 and 3,520.86

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Solution

The fourth proportional to 10,636.38, 15,955.85 and 3,520.86 is: 5,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.38 : 15,955.85 = 3,520.86 : x
  2. Step 2: Convert to fraction form
    10,636.38/15,955.85 = 3,520.86/x
  3. Step 3: Cross multiply
    10,636.38x = 15,955.85 × 3,520.86
  4. Step 4: Simplify right side
    10,636.38x = 56,178,314.03
  5. Step 5: Solve for x
    x = 56,178,314.03/10,636.38
  6. Step 6: Final answer
    x = 5,281.71

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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.