Home / 18,763.38-25,887.60-11,311.38

Finding the Fourth Proportional to 18,763.38, 25,887.60 and 11,311.38

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Solution

The fourth proportional to 18,763.38, 25,887.60 and 11,311.38 is: 15,606.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.38 : 25,887.60 = 11,311.38 : x
  2. Step 2: Convert to fraction form
    18,763.38/25,887.60 = 11,311.38/x
  3. Step 3: Cross multiply
    18,763.38x = 25,887.60 × 11,311.38
  4. Step 4: Simplify right side
    18,763.38x = 292,824,480.89
  5. Step 5: Solve for x
    x = 292,824,480.89/18,763.38
  6. Step 6: Final answer
    x = 15,606.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.