Home / 18,409.28-27,618.57-5,262.77

Finding the Fourth Proportional to 18,409.28, 27,618.57 and 5,262.77

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Solution

The fourth proportional to 18,409.28, 27,618.57 and 5,262.77 is: 7,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.28 : 27,618.57 = 5,262.77 : x
  2. Step 2: Convert to fraction form
    18,409.28/27,618.57 = 5,262.77/x
  3. Step 3: Cross multiply
    18,409.28x = 27,618.57 × 5,262.77
  4. Step 4: Simplify right side
    18,409.28x = 145,350,250.69
  5. Step 5: Solve for x
    x = 145,350,250.69/18,409.28
  6. Step 6: Final answer
    x = 7,895.49

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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.