Home / 16,814.78-25,199.49-6,420.86

Finding the Fourth Proportional to 16,814.78, 25,199.49 and 6,420.86

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Solution

The fourth proportional to 16,814.78, 25,199.49 and 6,420.86 is: 9,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,814.78 : 25,199.49 = 6,420.86 : x
  2. Step 2: Convert to fraction form
    16,814.78/25,199.49 = 6,420.86/x
  3. Step 3: Cross multiply
    16,814.78x = 25,199.49 × 6,420.86
  4. Step 4: Simplify right side
    16,814.78x = 161,802,397.36
  5. Step 5: Solve for x
    x = 161,802,397.36/16,814.78
  6. Step 6: Final answer
    x = 9,622.63

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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.