Home / 11,087.16-15,300.56-6,611.78

Finding the Fourth Proportional to 11,087.16, 15,300.56 and 6,611.78

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Solution

The fourth proportional to 11,087.16, 15,300.56 and 6,611.78 is: 9,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.16 : 15,300.56 = 6,611.78 : x
  2. Step 2: Convert to fraction form
    11,087.16/15,300.56 = 6,611.78/x
  3. Step 3: Cross multiply
    11,087.16x = 15,300.56 × 6,611.78
  4. Step 4: Simplify right side
    11,087.16x = 101,163,936.60
  5. Step 5: Solve for x
    x = 101,163,936.60/11,087.16
  6. Step 6: Final answer
    x = 9,124.42

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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.