Home / 10,747.78-16,130.56-5,486.68

Finding the Fourth Proportional to 10,747.78, 16,130.56 and 5,486.68

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Solution

The fourth proportional to 10,747.78, 16,130.56 and 5,486.68 is: 8,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.78 : 16,130.56 = 5,486.68 : x
  2. Step 2: Convert to fraction form
    10,747.78/16,130.56 = 5,486.68/x
  3. Step 3: Cross multiply
    10,747.78x = 16,130.56 × 5,486.68
  4. Step 4: Simplify right side
    10,747.78x = 88,503,220.94
  5. Step 5: Solve for x
    x = 88,503,220.94/10,747.78
  6. Step 6: Final answer
    x = 8,234.56

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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.