Home / 18,571.76-25,629-10,188.24

Finding the Fourth Proportional to 18,571.76, 25,629 and 10,188.24

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Solution

The fourth proportional to 18,571.76, 25,629 and 10,188.24 is: 14,059.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.76 : 25,629 = 10,188.24 : x
  2. Step 2: Convert to fraction form
    18,571.76/25,629 = 10,188.24/x
  3. Step 3: Cross multiply
    18,571.76x = 25,629 × 10,188.24
  4. Step 4: Simplify right side
    18,571.76x = 261,114,402.96
  5. Step 5: Solve for x
    x = 261,114,402.96/18,571.76
  6. Step 6: Final answer
    x = 14,059.76

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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.