Home / 13,884.69-20,835.18-5,125.71

Finding the Fourth Proportional to 13,884.69, 20,835.18 and 5,125.71

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Solution

The fourth proportional to 13,884.69, 20,835.18 and 5,125.71 is: 7,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.69 : 20,835.18 = 5,125.71 : x
  2. Step 2: Convert to fraction form
    13,884.69/20,835.18 = 5,125.71/x
  3. Step 3: Cross multiply
    13,884.69x = 20,835.18 × 5,125.71
  4. Step 4: Simplify right side
    13,884.69x = 106,795,090.48
  5. Step 5: Solve for x
    x = 106,795,090.48/13,884.69
  6. Step 6: Final answer
    x = 7,691.57

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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.