Home / 12,972.57-19,455.22-5,575.38

Finding the Fourth Proportional to 12,972.57, 19,455.22 and 5,575.38

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Solution

The fourth proportional to 12,972.57, 19,455.22 and 5,575.38 is: 8,361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.57 : 19,455.22 = 5,575.38 : x
  2. Step 2: Convert to fraction form
    12,972.57/19,455.22 = 5,575.38/x
  3. Step 3: Cross multiply
    12,972.57x = 19,455.22 × 5,575.38
  4. Step 4: Simplify right side
    12,972.57x = 108,470,244.48
  5. Step 5: Solve for x
    x = 108,470,244.48/12,972.57
  6. Step 6: Final answer
    x = 8,361.51

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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.