Home / 13,409.35-20,101.57-7,173.66

Finding the Fourth Proportional to 13,409.35, 20,101.57 and 7,173.66

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Solution

The fourth proportional to 13,409.35, 20,101.57 and 7,173.66 is: 10,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.35 : 20,101.57 = 7,173.66 : x
  2. Step 2: Convert to fraction form
    13,409.35/20,101.57 = 7,173.66/x
  3. Step 3: Cross multiply
    13,409.35x = 20,101.57 × 7,173.66
  4. Step 4: Simplify right side
    13,409.35x = 144,201,886.09
  5. Step 5: Solve for x
    x = 144,201,886.09/13,409.35
  6. Step 6: Final answer
    x = 10,753.83

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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.