Home / 13,492.30-20,239.92-5,179.38

Finding the Fourth Proportional to 13,492.30, 20,239.92 and 5,179.38

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Solution

The fourth proportional to 13,492.30, 20,239.92 and 5,179.38 is: 7,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.30 : 20,239.92 = 5,179.38 : x
  2. Step 2: Convert to fraction form
    13,492.30/20,239.92 = 5,179.38/x
  3. Step 3: Cross multiply
    13,492.30x = 20,239.92 × 5,179.38
  4. Step 4: Simplify right side
    13,492.30x = 104,830,236.85
  5. Step 5: Solve for x
    x = 104,830,236.85/13,492.30
  6. Step 6: Final answer
    x = 7,769.63

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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.