Home / 15,039.54-20,753.82-8,325.36

Finding the Fourth Proportional to 15,039.54, 20,753.82 and 8,325.36

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Solution

The fourth proportional to 15,039.54, 20,753.82 and 8,325.36 is: 11,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.54 : 20,753.82 = 8,325.36 : x
  2. Step 2: Convert to fraction form
    15,039.54/20,753.82 = 8,325.36/x
  3. Step 3: Cross multiply
    15,039.54x = 20,753.82 × 8,325.36
  4. Step 4: Simplify right side
    15,039.54x = 172,783,022.88
  5. Step 5: Solve for x
    x = 172,783,022.88/15,039.54
  6. Step 6: Final answer
    x = 11,488.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.