Home / 18,723.76-25,840.32-10,768.54

Finding the Fourth Proportional to 18,723.76, 25,840.32 and 10,768.54

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Solution

The fourth proportional to 18,723.76, 25,840.32 and 10,768.54 is: 14,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.76 : 25,840.32 = 10,768.54 : x
  2. Step 2: Convert to fraction form
    18,723.76/25,840.32 = 10,768.54/x
  3. Step 3: Cross multiply
    18,723.76x = 25,840.32 × 10,768.54
  4. Step 4: Simplify right side
    18,723.76x = 278,262,519.53
  5. Step 5: Solve for x
    x = 278,262,519.53/18,723.76
  6. Step 6: Final answer
    x = 14,861.47

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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.