Home / 13,902.69-20,857.28-4,543.14

Finding the Fourth Proportional to 13,902.69, 20,857.28 and 4,543.14

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Solution

The fourth proportional to 13,902.69, 20,857.28 and 4,543.14 is: 6,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.69 : 20,857.28 = 4,543.14 : x
  2. Step 2: Convert to fraction form
    13,902.69/20,857.28 = 4,543.14/x
  3. Step 3: Cross multiply
    13,902.69x = 20,857.28 × 4,543.14
  4. Step 4: Simplify right side
    13,902.69x = 94,757,520.34
  5. Step 5: Solve for x
    x = 94,757,520.34/13,902.69
  6. Step 6: Final answer
    x = 6,815.77

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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.