Home / 18,290.01-27,429.60-7,759.90

Finding the Fourth Proportional to 18,290.01, 27,429.60 and 7,759.90

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Solution

The fourth proportional to 18,290.01, 27,429.60 and 7,759.90 is: 11,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.01 : 27,429.60 = 7,759.90 : x
  2. Step 2: Convert to fraction form
    18,290.01/27,429.60 = 7,759.90/x
  3. Step 3: Cross multiply
    18,290.01x = 27,429.60 × 7,759.90
  4. Step 4: Simplify right side
    18,290.01x = 212,850,815.89
  5. Step 5: Solve for x
    x = 212,850,815.89/18,290.01
  6. Step 6: Final answer
    x = 11,637.55

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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.