Home / 13,941.24-20,897.28-5,172.18

Finding the Fourth Proportional to 13,941.24, 20,897.28 and 5,172.18

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Solution

The fourth proportional to 13,941.24, 20,897.28 and 5,172.18 is: 7,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.24 : 20,897.28 = 5,172.18 : x
  2. Step 2: Convert to fraction form
    13,941.24/20,897.28 = 5,172.18/x
  3. Step 3: Cross multiply
    13,941.24x = 20,897.28 × 5,172.18
  4. Step 4: Simplify right side
    13,941.24x = 108,084,493.67
  5. Step 5: Solve for x
    x = 108,084,493.67/13,941.24
  6. Step 6: Final answer
    x = 7,752.86

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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.