Home / 16,781.83-25,157.02-5,680.75

Finding the Fourth Proportional to 16,781.83, 25,157.02 and 5,680.75

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Solution

The fourth proportional to 16,781.83, 25,157.02 and 5,680.75 is: 8,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.83 : 25,157.02 = 5,680.75 : x
  2. Step 2: Convert to fraction form
    16,781.83/25,157.02 = 5,680.75/x
  3. Step 3: Cross multiply
    16,781.83x = 25,157.02 × 5,680.75
  4. Step 4: Simplify right side
    16,781.83x = 142,910,741.37
  5. Step 5: Solve for x
    x = 142,910,741.37/16,781.83
  6. Step 6: Final answer
    x = 8,515.80

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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.