Home / 10,915.38-15,063.57-6,199.38

Finding the Fourth Proportional to 10,915.38, 15,063.57 and 6,199.38

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Solution

The fourth proportional to 10,915.38, 15,063.57 and 6,199.38 is: 8,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.38 : 15,063.57 = 6,199.38 : x
  2. Step 2: Convert to fraction form
    10,915.38/15,063.57 = 6,199.38/x
  3. Step 3: Cross multiply
    10,915.38x = 15,063.57 × 6,199.38
  4. Step 4: Simplify right side
    10,915.38x = 93,384,794.59
  5. Step 5: Solve for x
    x = 93,384,794.59/10,915.38
  6. Step 6: Final answer
    x = 8,555.34

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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.