Home / 10,930.24-16,400.78-7,231.48

Finding the Fourth Proportional to 10,930.24, 16,400.78 and 7,231.48

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Solution

The fourth proportional to 10,930.24, 16,400.78 and 7,231.48 is: 10,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.24 : 16,400.78 = 7,231.48 : x
  2. Step 2: Convert to fraction form
    10,930.24/16,400.78 = 7,231.48/x
  3. Step 3: Cross multiply
    10,930.24x = 16,400.78 × 7,231.48
  4. Step 4: Simplify right side
    10,930.24x = 118,601,862.51
  5. Step 5: Solve for x
    x = 118,601,862.51/10,930.24
  6. Step 6: Final answer
    x = 10,850.80

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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.