Home / 19,142.68-28,721.34-7,464.04

Finding the Fourth Proportional to 19,142.68, 28,721.34 and 7,464.04

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Solution

The fourth proportional to 19,142.68, 28,721.34 and 7,464.04 is: 11,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.68 : 28,721.34 = 7,464.04 : x
  2. Step 2: Convert to fraction form
    19,142.68/28,721.34 = 7,464.04/x
  3. Step 3: Cross multiply
    19,142.68x = 28,721.34 × 7,464.04
  4. Step 4: Simplify right side
    19,142.68x = 214,377,230.61
  5. Step 5: Solve for x
    x = 214,377,230.61/19,142.68
  6. Step 6: Final answer
    x = 11,198.91

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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.