Home / 11,005.19-15,161.49-9,004.08

Finding the Fourth Proportional to 11,005.19, 15,161.49 and 9,004.08

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Solution

The fourth proportional to 11,005.19, 15,161.49 and 9,004.08 is: 12,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.19 : 15,161.49 = 9,004.08 : x
  2. Step 2: Convert to fraction form
    11,005.19/15,161.49 = 9,004.08/x
  3. Step 3: Cross multiply
    11,005.19x = 15,161.49 × 9,004.08
  4. Step 4: Simplify right side
    11,005.19x = 136,515,268.88
  5. Step 5: Solve for x
    x = 136,515,268.88/11,005.19
  6. Step 6: Final answer
    x = 12,404.63

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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.