Home / 11,109.48-16,649.41-5,478.54

Finding the Fourth Proportional to 11,109.48, 16,649.41 and 5,478.54

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Solution

The fourth proportional to 11,109.48, 16,649.41 and 5,478.54 is: 8,210.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.48 : 16,649.41 = 5,478.54 : x
  2. Step 2: Convert to fraction form
    11,109.48/16,649.41 = 5,478.54/x
  3. Step 3: Cross multiply
    11,109.48x = 16,649.41 × 5,478.54
  4. Step 4: Simplify right side
    11,109.48x = 91,214,458.66
  5. Step 5: Solve for x
    x = 91,214,458.66/11,109.48
  6. Step 6: Final answer
    x = 8,210.51

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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.