Home / 18,826.13-28,239.26-4,975.13

Finding the Fourth Proportional to 18,826.13, 28,239.26 and 4,975.13

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Solution

The fourth proportional to 18,826.13, 28,239.26 and 4,975.13 is: 7,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.13 : 28,239.26 = 4,975.13 : x
  2. Step 2: Convert to fraction form
    18,826.13/28,239.26 = 4,975.13/x
  3. Step 3: Cross multiply
    18,826.13x = 28,239.26 × 4,975.13
  4. Step 4: Simplify right side
    18,826.13x = 140,493,823.53
  5. Step 5: Solve for x
    x = 140,493,823.53/18,826.13
  6. Step 6: Final answer
    x = 7,462.71

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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.