Home / 11,151.78-16,730.38-5,591.32

Finding the Fourth Proportional to 11,151.78, 16,730.38 and 5,591.32

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Solution

The fourth proportional to 11,151.78, 16,730.38 and 5,591.32 is: 8,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.78 : 16,730.38 = 5,591.32 : x
  2. Step 2: Convert to fraction form
    11,151.78/16,730.38 = 5,591.32/x
  3. Step 3: Cross multiply
    11,151.78x = 16,730.38 × 5,591.32
  4. Step 4: Simplify right side
    11,151.78x = 93,544,908.30
  5. Step 5: Solve for x
    x = 93,544,908.30/11,151.78
  6. Step 6: Final answer
    x = 8,388.34

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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.