Home / 12,800.03-19,199.70-3,915.27

Finding the Fourth Proportional to 12,800.03, 19,199.70 and 3,915.27

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Solution

The fourth proportional to 12,800.03, 19,199.70 and 3,915.27 is: 5,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.03 : 19,199.70 = 3,915.27 : x
  2. Step 2: Convert to fraction form
    12,800.03/19,199.70 = 3,915.27/x
  3. Step 3: Cross multiply
    12,800.03x = 19,199.70 × 3,915.27
  4. Step 4: Simplify right side
    12,800.03x = 75,172,009.42
  5. Step 5: Solve for x
    x = 75,172,009.42/12,800.03
  6. Step 6: Final answer
    x = 5,872.80

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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.