Home / 11,661.08-17,478.84-7,272.48

Finding the Fourth Proportional to 11,661.08, 17,478.84 and 7,272.48

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Solution

The fourth proportional to 11,661.08, 17,478.84 and 7,272.48 is: 10,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.08 : 17,478.84 = 7,272.48 : x
  2. Step 2: Convert to fraction form
    11,661.08/17,478.84 = 7,272.48/x
  3. Step 3: Cross multiply
    11,661.08x = 17,478.84 × 7,272.48
  4. Step 4: Simplify right side
    11,661.08x = 127,114,514.32
  5. Step 5: Solve for x
    x = 127,114,514.32/11,661.08
  6. Step 6: Final answer
    x = 10,900.75

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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.