Home / 9,293.88-12,821.37-5,517.20

Finding the Fourth Proportional to 9,293.88, 12,821.37 and 5,517.20

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Solution

The fourth proportional to 9,293.88, 12,821.37 and 5,517.20 is: 7,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,293.88 : 12,821.37 = 5,517.20 : x
  2. Step 2: Convert to fraction form
    9,293.88/12,821.37 = 5,517.20/x
  3. Step 3: Cross multiply
    9,293.88x = 12,821.37 × 5,517.20
  4. Step 4: Simplify right side
    9,293.88x = 70,737,998.46
  5. Step 5: Solve for x
    x = 70,737,998.46/9,293.88
  6. Step 6: Final answer
    x = 7,611.25

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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.