Home / 11,018.97-15,197.96-7,191.45

Finding the Fourth Proportional to 11,018.97, 15,197.96 and 7,191.45

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Solution

The fourth proportional to 11,018.97, 15,197.96 and 7,191.45 is: 9,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.97 : 15,197.96 = 7,191.45 : x
  2. Step 2: Convert to fraction form
    11,018.97/15,197.96 = 7,191.45/x
  3. Step 3: Cross multiply
    11,018.97x = 15,197.96 × 7,191.45
  4. Step 4: Simplify right side
    11,018.97x = 109,295,387.42
  5. Step 5: Solve for x
    x = 109,295,387.42/11,018.97
  6. Step 6: Final answer
    x = 9,918.84

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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.