Home / 11,101.22-15,301.88-7,515.03

Finding the Fourth Proportional to 11,101.22, 15,301.88 and 7,515.03

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Solution

The fourth proportional to 11,101.22, 15,301.88 and 7,515.03 is: 10,358.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.22 : 15,301.88 = 7,515.03 : x
  2. Step 2: Convert to fraction form
    11,101.22/15,301.88 = 7,515.03/x
  3. Step 3: Cross multiply
    11,101.22x = 15,301.88 × 7,515.03
  4. Step 4: Simplify right side
    11,101.22x = 114,994,049.68
  5. Step 5: Solve for x
    x = 114,994,049.68/11,101.22
  6. Step 6: Final answer
    x = 10,358.69

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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.