Home / 7,915.52-11,894.82-4,220.36

Finding the Fourth Proportional to 7,915.52, 11,894.82 and 4,220.36

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Solution

The fourth proportional to 7,915.52, 11,894.82 and 4,220.36 is: 6,342.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.52 : 11,894.82 = 4,220.36 : x
  2. Step 2: Convert to fraction form
    7,915.52/11,894.82 = 4,220.36/x
  3. Step 3: Cross multiply
    7,915.52x = 11,894.82 × 4,220.36
  4. Step 4: Simplify right side
    7,915.52x = 50,200,422.54
  5. Step 5: Solve for x
    x = 50,200,422.54/7,915.52
  6. Step 6: Final answer
    x = 6,342.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.