Home / 11,728.78-17,600.09-4,338.39

Finding the Fourth Proportional to 11,728.78, 17,600.09 and 4,338.39

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Solution

The fourth proportional to 11,728.78, 17,600.09 and 4,338.39 is: 6,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.78 : 17,600.09 = 4,338.39 : x
  2. Step 2: Convert to fraction form
    11,728.78/17,600.09 = 4,338.39/x
  3. Step 3: Cross multiply
    11,728.78x = 17,600.09 × 4,338.39
  4. Step 4: Simplify right side
    11,728.78x = 76,356,098.76
  5. Step 5: Solve for x
    x = 76,356,098.76/11,728.78
  6. Step 6: Final answer
    x = 6,510.15

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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.