Home / 18,916.06-28,391.60-9,562.68

Finding the Fourth Proportional to 18,916.06, 28,391.60 and 9,562.68

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Solution

The fourth proportional to 18,916.06, 28,391.60 and 9,562.68 is: 14,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.06 : 28,391.60 = 9,562.68 : x
  2. Step 2: Convert to fraction form
    18,916.06/28,391.60 = 9,562.68/x
  3. Step 3: Cross multiply
    18,916.06x = 28,391.60 × 9,562.68
  4. Step 4: Simplify right side
    18,916.06x = 271,499,785.49
  5. Step 5: Solve for x
    x = 271,499,785.49/18,916.06
  6. Step 6: Final answer
    x = 14,352.87

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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.