Home / 13,743.72-20,609.10-7,898.76

Finding the Fourth Proportional to 13,743.72, 20,609.10 and 7,898.76

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Solution

The fourth proportional to 13,743.72, 20,609.10 and 7,898.76 is: 11,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.72 : 20,609.10 = 7,898.76 : x
  2. Step 2: Convert to fraction form
    13,743.72/20,609.10 = 7,898.76/x
  3. Step 3: Cross multiply
    13,743.72x = 20,609.10 × 7,898.76
  4. Step 4: Simplify right side
    13,743.72x = 162,786,334.72
  5. Step 5: Solve for x
    x = 162,786,334.72/13,743.72
  6. Step 6: Final answer
    x = 11,844.42

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1.5x scale

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.