Home / 13,490.30-20,236.92-5,177.38

Finding the Fourth Proportional to 13,490.30, 20,236.92 and 5,177.38

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Solution

The fourth proportional to 13,490.30, 20,236.92 and 5,177.38 is: 7,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.30 : 20,236.92 = 5,177.38 : x
  2. Step 2: Convert to fraction form
    13,490.30/20,236.92 = 5,177.38/x
  3. Step 3: Cross multiply
    13,490.30x = 20,236.92 × 5,177.38
  4. Step 4: Simplify right side
    13,490.30x = 104,774,224.87
  5. Step 5: Solve for x
    x = 104,774,224.87/13,490.30
  6. Step 6: Final answer
    x = 7,766.63

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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.