Home / 11,087.64-15,300.56-6,609.09

Finding the Fourth Proportional to 11,087.64, 15,300.56 and 6,609.09

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Solution

The fourth proportional to 11,087.64, 15,300.56 and 6,609.09 is: 9,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.64 : 15,300.56 = 6,609.09 : x
  2. Step 2: Convert to fraction form
    11,087.64/15,300.56 = 6,609.09/x
  3. Step 3: Cross multiply
    11,087.64x = 15,300.56 × 6,609.09
  4. Step 4: Simplify right side
    11,087.64x = 101,122,701.59
  5. Step 5: Solve for x
    x = 101,122,701.59/11,087.64
  6. Step 6: Final answer
    x = 9,120.31

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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.