Home / 11,087.89-15,300.90-6,609.34

Finding the Fourth Proportional to 11,087.89, 15,300.90 and 6,609.34

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Solution

The fourth proportional to 11,087.89, 15,300.90 and 6,609.34 is: 9,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.89 : 15,300.90 = 6,609.34 : x
  2. Step 2: Convert to fraction form
    11,087.89/15,300.90 = 6,609.34/x
  3. Step 3: Cross multiply
    11,087.89x = 15,300.90 × 6,609.34
  4. Step 4: Simplify right side
    11,087.89x = 101,128,850.41
  5. Step 5: Solve for x
    x = 101,128,850.41/11,087.89
  6. Step 6: Final answer
    x = 9,120.66

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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.