Home / 10,780.90-16,171.36-4,850.87

Finding the Fourth Proportional to 10,780.90, 16,171.36 and 4,850.87

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Solution

The fourth proportional to 10,780.90, 16,171.36 and 4,850.87 is: 7,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.90 : 16,171.36 = 4,850.87 : x
  2. Step 2: Convert to fraction form
    10,780.90/16,171.36 = 4,850.87/x
  3. Step 3: Cross multiply
    10,780.90x = 16,171.36 × 4,850.87
  4. Step 4: Simplify right side
    10,780.90x = 78,445,165.08
  5. Step 5: Solve for x
    x = 78,445,165.08/10,780.90
  6. Step 6: Final answer
    x = 7,276.31

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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.