Home / 11,372.22-15,694.88-6,660.45

Finding the Fourth Proportional to 11,372.22, 15,694.88 and 6,660.45

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Solution

The fourth proportional to 11,372.22, 15,694.88 and 6,660.45 is: 9,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.22 : 15,694.88 = 6,660.45 : x
  2. Step 2: Convert to fraction form
    11,372.22/15,694.88 = 6,660.45/x
  3. Step 3: Cross multiply
    11,372.22x = 15,694.88 × 6,660.45
  4. Step 4: Simplify right side
    11,372.22x = 104,534,930.19
  5. Step 5: Solve for x
    x = 104,534,930.19/11,372.22
  6. Step 6: Final answer
    x = 9,192.13

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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.