Home / 11,076.85-15,287.82-6,603.20

Finding the Fourth Proportional to 11,076.85, 15,287.82 and 6,603.20

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Solution

The fourth proportional to 11,076.85, 15,287.82 and 6,603.20 is: 9,113.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.85 : 15,287.82 = 6,603.20 : x
  2. Step 2: Convert to fraction form
    11,076.85/15,287.82 = 6,603.20/x
  3. Step 3: Cross multiply
    11,076.85x = 15,287.82 × 6,603.20
  4. Step 4: Simplify right side
    11,076.85x = 100,948,489.15
  5. Step 5: Solve for x
    x = 100,948,489.15/11,076.85
  6. Step 6: Final answer
    x = 9,113.46

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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.