Home / 18,406.48-27,601.40-5,255.72

Finding the Fourth Proportional to 18,406.48, 27,601.40 and 5,255.72

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Solution

The fourth proportional to 18,406.48, 27,601.40 and 5,255.72 is: 7,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.48 : 27,601.40 = 5,255.72 : x
  2. Step 2: Convert to fraction form
    18,406.48/27,601.40 = 5,255.72/x
  3. Step 3: Cross multiply
    18,406.48x = 27,601.40 × 5,255.72
  4. Step 4: Simplify right side
    18,406.48x = 145,065,230.01
  5. Step 5: Solve for x
    x = 145,065,230.01/18,406.48
  6. Step 6: Final answer
    x = 7,881.20

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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.