Home / 13,777.88-20,672.34-5,013.40

Finding the Fourth Proportional to 13,777.88, 20,672.34 and 5,013.40

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Solution

The fourth proportional to 13,777.88, 20,672.34 and 5,013.40 is: 7,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.88 : 20,672.34 = 5,013.40 : x
  2. Step 2: Convert to fraction form
    13,777.88/20,672.34 = 5,013.40/x
  3. Step 3: Cross multiply
    13,777.88x = 20,672.34 × 5,013.40
  4. Step 4: Simplify right side
    13,777.88x = 103,638,709.36
  5. Step 5: Solve for x
    x = 103,638,709.36/13,777.88
  6. Step 6: Final answer
    x = 7,522.11

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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.