Home / 11,015.22-15,194.88-7,239

Finding the Fourth Proportional to 11,015.22, 15,194.88 and 7,239

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Solution

The fourth proportional to 11,015.22, 15,194.88 and 7,239 is: 9,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.22 : 15,194.88 = 7,239 : x
  2. Step 2: Convert to fraction form
    11,015.22/15,194.88 = 7,239/x
  3. Step 3: Cross multiply
    11,015.22x = 15,194.88 × 7,239
  4. Step 4: Simplify right side
    11,015.22x = 109,995,736.32
  5. Step 5: Solve for x
    x = 109,995,736.32/11,015.22
  6. Step 6: Final answer
    x = 9,985.80

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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.