Home / 8,199.93-12,302.99-4,915.38

Finding the Fourth Proportional to 8,199.93, 12,302.99 and 4,915.38

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Solution

The fourth proportional to 8,199.93, 12,302.99 and 4,915.38 is: 7,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.93 : 12,302.99 = 4,915.38 : x
  2. Step 2: Convert to fraction form
    8,199.93/12,302.99 = 4,915.38/x
  3. Step 3: Cross multiply
    8,199.93x = 12,302.99 × 4,915.38
  4. Step 4: Simplify right side
    8,199.93x = 60,473,910.98
  5. Step 5: Solve for x
    x = 60,473,910.98/8,199.93
  6. Step 6: Final answer
    x = 7,374.93

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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.