Home / 13,748.07-20,619.53-3,887.28

Finding the Fourth Proportional to 13,748.07, 20,619.53 and 3,887.28

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Solution

The fourth proportional to 13,748.07, 20,619.53 and 3,887.28 is: 5,830.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.07 : 20,619.53 = 3,887.28 : x
  2. Step 2: Convert to fraction form
    13,748.07/20,619.53 = 3,887.28/x
  3. Step 3: Cross multiply
    13,748.07x = 20,619.53 × 3,887.28
  4. Step 4: Simplify right side
    13,748.07x = 80,153,867.14
  5. Step 5: Solve for x
    x = 80,153,867.14/13,748.07
  6. Step 6: Final answer
    x = 5,830.19

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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.