Home / 13,446.42-20,136.75-11,609.34

Finding the Fourth Proportional to 13,446.42, 20,136.75 and 11,609.34

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Solution

The fourth proportional to 13,446.42, 20,136.75 and 11,609.34 is: 17,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.42 : 20,136.75 = 11,609.34 : x
  2. Step 2: Convert to fraction form
    13,446.42/20,136.75 = 11,609.34/x
  3. Step 3: Cross multiply
    13,446.42x = 20,136.75 × 11,609.34
  4. Step 4: Simplify right side
    13,446.42x = 233,774,377.25
  5. Step 5: Solve for x
    x = 233,774,377.25/13,446.42
  6. Step 6: Final answer
    x = 17,385.62

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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.