Home / 10,504.78-15,757.60-4,887.72

Finding the Fourth Proportional to 10,504.78, 15,757.60 and 4,887.72

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Solution

The fourth proportional to 10,504.78, 15,757.60 and 4,887.72 is: 7,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,504.78 : 15,757.60 = 4,887.72 : x
  2. Step 2: Convert to fraction form
    10,504.78/15,757.60 = 4,887.72/x
  3. Step 3: Cross multiply
    10,504.78x = 15,757.60 × 4,887.72
  4. Step 4: Simplify right side
    10,504.78x = 77,018,736.67
  5. Step 5: Solve for x
    x = 77,018,736.67/10,504.78
  6. Step 6: Final answer
    x = 7,331.78

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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.