Home / 18,839.24-25,999.38-10,455.76

Finding the Fourth Proportional to 18,839.24, 25,999.38 and 10,455.76

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Solution

The fourth proportional to 18,839.24, 25,999.38 and 10,455.76 is: 14,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.24 : 25,999.38 = 10,455.76 : x
  2. Step 2: Convert to fraction form
    18,839.24/25,999.38 = 10,455.76/x
  3. Step 3: Cross multiply
    18,839.24x = 25,999.38 × 10,455.76
  4. Step 4: Simplify right side
    18,839.24x = 271,843,277.43
  5. Step 5: Solve for x
    x = 271,843,277.43/18,839.24
  6. Step 6: Final answer
    x = 14,429.63

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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.