Home / 15,781.86-23,676.44-4,688.30

Finding the Fourth Proportional to 15,781.86, 23,676.44 and 4,688.30

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Solution

The fourth proportional to 15,781.86, 23,676.44 and 4,688.30 is: 7,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.86 : 23,676.44 = 4,688.30 : x
  2. Step 2: Convert to fraction form
    15,781.86/23,676.44 = 4,688.30/x
  3. Step 3: Cross multiply
    15,781.86x = 23,676.44 × 4,688.30
  4. Step 4: Simplify right side
    15,781.86x = 111,002,289.40
  5. Step 5: Solve for x
    x = 111,002,289.40/15,781.86
  6. Step 6: Final answer
    x = 7,033.54

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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.