Home / 13,195.10-19,765.11-7,913.36

Finding the Fourth Proportional to 13,195.10, 19,765.11 and 7,913.36

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Solution

The fourth proportional to 13,195.10, 19,765.11 and 7,913.36 is: 11,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.10 : 19,765.11 = 7,913.36 : x
  2. Step 2: Convert to fraction form
    13,195.10/19,765.11 = 7,913.36/x
  3. Step 3: Cross multiply
    13,195.10x = 19,765.11 × 7,913.36
  4. Step 4: Simplify right side
    13,195.10x = 156,408,509.96
  5. Step 5: Solve for x
    x = 156,408,509.96/13,195.10
  6. Step 6: Final answer
    x = 11,853.53

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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.