Home / 13,748.64-20,622.90-3,360.39

Finding the Fourth Proportional to 13,748.64, 20,622.90 and 3,360.39

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Solution

The fourth proportional to 13,748.64, 20,622.90 and 3,360.39 is: 5,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.64 : 20,622.90 = 3,360.39 : x
  2. Step 2: Convert to fraction form
    13,748.64/20,622.90 = 3,360.39/x
  3. Step 3: Cross multiply
    13,748.64x = 20,622.90 × 3,360.39
  4. Step 4: Simplify right side
    13,748.64x = 69,300,986.93
  5. Step 5: Solve for x
    x = 69,300,986.93/13,748.64
  6. Step 6: Final answer
    x = 5,040.57

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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.