Home / 10,458.72-15,676.20-4,906.80

Finding the Fourth Proportional to 10,458.72, 15,676.20 and 4,906.80

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Solution

The fourth proportional to 10,458.72, 15,676.20 and 4,906.80 is: 7,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.72 : 15,676.20 = 4,906.80 : x
  2. Step 2: Convert to fraction form
    10,458.72/15,676.20 = 4,906.80/x
  3. Step 3: Cross multiply
    10,458.72x = 15,676.20 × 4,906.80
  4. Step 4: Simplify right side
    10,458.72x = 76,919,978.16
  5. Step 5: Solve for x
    x = 76,919,978.16/10,458.72
  6. Step 6: Final answer
    x = 7,354.63

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1.5x scale

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.