Home / 13,977.29-20,961.48-4,615.56

Finding the Fourth Proportional to 13,977.29, 20,961.48 and 4,615.56

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Solution

The fourth proportional to 13,977.29, 20,961.48 and 4,615.56 is: 6,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.29 : 20,961.48 = 4,615.56 : x
  2. Step 2: Convert to fraction form
    13,977.29/20,961.48 = 4,615.56/x
  3. Step 3: Cross multiply
    13,977.29x = 20,961.48 × 4,615.56
  4. Step 4: Simplify right side
    13,977.29x = 96,748,968.63
  5. Step 5: Solve for x
    x = 96,748,968.63/13,977.29
  6. Step 6: Final answer
    x = 6,921.87

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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.