Home / 11,815.24-17,729.04-7,654.18

Finding the Fourth Proportional to 11,815.24, 17,729.04 and 7,654.18

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Solution

The fourth proportional to 11,815.24, 17,729.04 and 7,654.18 is: 11,485.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.24 : 17,729.04 = 7,654.18 : x
  2. Step 2: Convert to fraction form
    11,815.24/17,729.04 = 7,654.18/x
  3. Step 3: Cross multiply
    11,815.24x = 17,729.04 × 7,654.18
  4. Step 4: Simplify right side
    11,815.24x = 135,701,263.39
  5. Step 5: Solve for x
    x = 135,701,263.39/11,815.24
  6. Step 6: Final answer
    x = 11,485.27

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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.