Home / 10,915.24-15,063.30-6,200.20

Finding the Fourth Proportional to 10,915.24, 15,063.30 and 6,200.20

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Solution

The fourth proportional to 10,915.24, 15,063.30 and 6,200.20 is: 8,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.24 : 15,063.30 = 6,200.20 : x
  2. Step 2: Convert to fraction form
    10,915.24/15,063.30 = 6,200.20/x
  3. Step 3: Cross multiply
    10,915.24x = 15,063.30 × 6,200.20
  4. Step 4: Simplify right side
    10,915.24x = 93,395,472.66
  5. Step 5: Solve for x
    x = 93,395,472.66/10,915.24
  6. Step 6: Final answer
    x = 8,556.43

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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.