Home / 15,913.71-23,877.32-8,516.25

Finding the Fourth Proportional to 15,913.71, 23,877.32 and 8,516.25

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Solution

The fourth proportional to 15,913.71, 23,877.32 and 8,516.25 is: 12,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.71 : 23,877.32 = 8,516.25 : x
  2. Step 2: Convert to fraction form
    15,913.71/23,877.32 = 8,516.25/x
  3. Step 3: Cross multiply
    15,913.71x = 23,877.32 × 8,516.25
  4. Step 4: Simplify right side
    15,913.71x = 203,345,183.87
  5. Step 5: Solve for x
    x = 203,345,183.87/15,913.71
  6. Step 6: Final answer
    x = 12,777.99

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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.