Home / 10,915.22-15,063.46-6,199.50

Finding the Fourth Proportional to 10,915.22, 15,063.46 and 6,199.50

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Solution

The fourth proportional to 10,915.22, 15,063.46 and 6,199.50 is: 8,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.22 : 15,063.46 = 6,199.50 : x
  2. Step 2: Convert to fraction form
    10,915.22/15,063.46 = 6,199.50/x
  3. Step 3: Cross multiply
    10,915.22x = 15,063.46 × 6,199.50
  4. Step 4: Simplify right side
    10,915.22x = 93,385,920.27
  5. Step 5: Solve for x
    x = 93,385,920.27/10,915.22
  6. Step 6: Final answer
    x = 8,555.57

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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.