Home / 11,087.80-15,300.30-6,371.08

Finding the Fourth Proportional to 11,087.80, 15,300.30 and 6,371.08

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Solution

The fourth proportional to 11,087.80, 15,300.30 and 6,371.08 is: 8,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.80 : 15,300.30 = 6,371.08 : x
  2. Step 2: Convert to fraction form
    11,087.80/15,300.30 = 6,371.08/x
  3. Step 3: Cross multiply
    11,087.80x = 15,300.30 × 6,371.08
  4. Step 4: Simplify right side
    11,087.80x = 97,479,435.32
  5. Step 5: Solve for x
    x = 97,479,435.32/11,087.80
  6. Step 6: Final answer
    x = 8,791.59

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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.